Lightroom Classic 12.3 slow?

Report · May 25, 2023

Is anyone else suffering from slow performance since the release of 12.3?

I edit several hundred photos in Lightroom every day. My newer (i.e. six month) high-end computer is lagging with this version of Lightroom. It was zippy with previous versions. Everything else runs quickly on the computer, so I suspect that something with the latest version of Lightroom is the culprit.

Report · May 25, 2023

Lagging during what actions? Please be specific and detailed. Please post your system information as shown in Help->System Info.

Report · May 25, 2023

In the develop module is where I notice it. Moving from photo to photo, applying radial fills -- pretty much every editing step is laggy compared to before. It's tough to evaluate objectively, but in general Lightroom used to keep up to me. Now it doesn't and it's painful.

My OS and Dell-supplied drivers are up to date. I was using Nvidia driver 531.41 but based on this thread about slow performance, I just downgraded the Nvidia driver to 516.94. It seems better, but still slow.

Report · May 25, 2023

Repeating: Please post your system information as shown in Help->System Info.

Report · May 25, 2023

Sorry, I copied the system info into the clipboard but forgot to paste it into my last message.

Lightroom Classic version: 12.3 [ 202304101834-a085245c ]
License: Creative Cloud
Language setting: en
Operating system: Windows 10 - Business Edition
Version: 10.0.22621
Application architecture: x64
System architecture: x64
Logical processor count: 24
Processor speed: 2.4GHz
SqLite Version: 3.36.0
CPU Utilisation: 0.0%
Built-in memory: 65220.7 MB
Dedicated GPU memory used by Lightroom: 6878.1MB / 16203.0MB (42%)
Real memory available to Lightroom: 65220.7 MB
Real memory used by Lightroom: 10902.1 MB (16.7%)
Virtual memory used by Lightroom: 19351.1 MB
GDI objects count: 1181
USER objects count: 3298
Process handles count: 16346
Memory cache size: 4624.4MB
Internal Camera Raw version: 15.3 [ 1451 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 1754MB / 32610MB (5%)
Camera Raw real memory: -15908MB / 65220MB (-24%)
System DPI setting: 168 DPI (high DPI mode)
Desktop composition enabled: Yes
Standard Preview Size: 3840 pixels
Displays: 1) 3840x2160, 2) 1080x1920, 3) 3840x2160
Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: No, Keyboard: No

Graphics Processor Info: 
DirectX: NVIDIA RTX A4500 Laptop GPU (31.0.15.1694)
Init State: GPU for Image Processing supported by default with custom export support
User Preference: GPU for Export enabled

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic
Library Path: E:\[ LIGHTROOM ]\Catalog Main\Lightroom Catalog 2023.lrcat
Settings Folder: C:\Users\mail\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 
1) AdobeStock
2) Flickr
3) HDR Efex Pro 2
4) Loupedeck2
5) Luminar AI
6) Luminar Neo
7) Nikon Tether Plugin
8) Plugin Parameters

Config.lua flags: None

Adapter #1: Vendor : 10de
	Device : 24ba
	Subsystem : b2b1028
	Revision : a1
	Video Memory : 16203
Adapter #2: Vendor : 8086
	Device : 4688
	Subsystem : b2b1028
	Revision : c
	Video Memory : 80
Adapter #3: Vendor : 1414
	Device : 8c
	Subsystem : 0
	Revision : 0
	Video Memory : 0
AudioDeviceIOBlockSize: 1024
AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - LG Ultra HD (2- HD Audio Driver for Display Audio)#{comment}DVAAU-4201250: Open the audio hardware preferences page.
AudioDeviceNumberOfChannels: 2
AudioDeviceSampleRate: 48000
Build: LR5x19
Direct2DEnabled: false
GL_ACCUM_ALPHA_BITS: 16
GL_ACCUM_BLUE_BITS: 16
GL_ACCUM_GREEN_BITS: 16
GL_ACCUM_RED_BITS: 16
GL_ALPHA_BITS: 0
GL_BLUE_BITS: 8
GL_DEPTH_BITS: 24
GL_GREEN_BITS: 8
GL_MAX_3D_TEXTURE_SIZE: 16384
GL_MAX_TEXTURE_SIZE: 32768
GL_MAX_TEXTURE_UNITS: 4
GL_MAX_VIEWPORT_DIMS: 32768,32768
GL_RED_BITS: 8
GL_RENDERER: NVIDIA RTX A4500 Laptop GPU/PCIe/SSE2
GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA
GL_STENCIL_BITS: 8
GL_VENDOR: NVIDIA Corporation
GL_VERSION: 4.6.0 NVIDIA 516.94
GPUDeviceEnabled: false
OGLEnabled: true
GL_EXTENSIONS: GL_AMD_multi_draw_indirect GL_AMD_seamless_cubemap_per_texture GL_AMD_vertex_shader_viewport_index GL_AMD_vertex_shader_layer GL_ARB_arrays_of_arrays GL_ARB_base_instance GL_ARB_bindless_texture GL_ARB_blend_func_extended GL_ARB_buffer_storage GL_ARB_cl_event GL_ARB_clear_buffer_object GL_ARB_clear_texture GL_ARB_clip_control GL_ARB_color_buffer_float GL_ARB_compatibility GL_ARB_compressed_texture_pixel_storage GL_ARB_conservative_depth GL_ARB_compute_shader GL_ARB_compute_variable_group_size GL_ARB_conditional_render_inverted GL_ARB_copy_buffer GL_ARB_copy_image GL_ARB_cull_distance GL_ARB_debug_output GL_ARB_depth_buffer_float GL_ARB_depth_clamp GL_ARB_depth_texture GL_ARB_derivative_control GL_ARB_direct_state_access GL_ARB_draw_buffers GL_ARB_draw_buffers_blend GL_ARB_draw_indirect GL_ARB_draw_elements_base_vertex GL_ARB_draw_instanced GL_ARB_enhanced_layouts GL_ARB_ES2_compatibility GL_ARB_ES3_compatibility GL_ARB_ES3_1_compatibility GL_ARB_ES3_2_compatibility GL_ARB_explicit_attrib_location GL_ARB_explicit_uniform_location GL_ARB_fragment_coord_conventions GL_ARB_fragment_layer_viewport GL_ARB_fragment_program GL_ARB_fragment_program_shadow GL_ARB_fragment_shader GL_ARB_fragment_shader_interlock GL_ARB_framebuffer_no_attachments GL_ARB_framebuffer_object GL_ARB_framebuffer_sRGB GL_ARB_geometry_shader4 GL_ARB_get_program_binary GL_ARB_get_texture_sub_image GL_ARB_gl_spirv GL_ARB_gpu_shader5 GL_ARB_gpu_shader_fp64 GL_ARB_gpu_shader_int64 GL_ARB_half_float_pixel GL_ARB_half_float_vertex GL_ARB_imaging GL_ARB_indirect_parameters GL_ARB_instanced_arrays GL_ARB_internalformat_query GL_ARB_internalformat_query2 GL_ARB_invalidate_subdata GL_ARB_map_buffer_alignment GL_ARB_map_buffer_range GL_ARB_multi_bind GL_ARB_multi_draw_indirect GL_ARB_multisample GL_ARB_multitexture GL_ARB_occlusion_query GL_ARB_occlusion_query2 GL_ARB_parallel_shader_compile GL_ARB_pipeline_statistics_query GL_ARB_pixel_buffer_object GL_ARB_point_parameters 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GL_ARB_texture_view GL_ARB_timer_query GL_ARB_transform_feedback2 GL_ARB_transform_feedback3 GL_ARB_transform_feedback_instanced GL_ARB_transform_feedback_overflow_query GL_ARB_transpose_matrix GL_ARB_uniform_buffer_object GL_ARB_vertex_array_bgra GL_ARB_vertex_array_object GL_ARB_vertex_attrib_64bit GL_ARB_vertex_attrib_binding GL_ARB_vertex_buffer_object GL_ARB_vertex_program GL_ARB_vertex_shader GL_ARB_vertex_type_10f_11f_11f_rev GL_ARB_vertex_type_2_10_10_10_rev GL_ARB_viewport_array GL_ARB_window_pos GL_ATI_draw_buffers GL_ATI_texture_float GL_ATI_texture_mirror_once GL_S3_s3tc GL_EXT_texture_env_add GL_EXT_abgr GL_EXT_bgra GL_EXT_bindable_uniform GL_EXT_blend_color GL_EXT_blend_equation_separate GL_EXT_blend_func_separate GL_EXT_blend_minmax GL_EXT_blend_subtract GL_EXT_compiled_vertex_array GL_EXT_Cg_shader GL_EXT_depth_bounds_test GL_EXT_direct_state_access GL_EXT_draw_buffers2 GL_EXT_draw_instanced GL_EXT_draw_range_elements GL_EXT_fog_coord GL_EXT_framebuffer_blit GL_EXT_framebuffer_multisample GL_EXTX_framebuffer_mixed_formats GL_EXT_framebuffer_multisample_blit_scaled GL_EXT_framebuffer_object GL_EXT_framebuffer_sRGB GL_EXT_geometry_shader4 GL_EXT_gpu_program_parameters GL_EXT_gpu_shader4 GL_EXT_multi_draw_arrays GL_EXT_multiview_tessellation_geometry_shader GL_EXT_multiview_texture_multisample GL_EXT_multiview_timer_query GL_EXT_packed_depth_stencil GL_EXT_packed_float GL_EXT_packed_pixels GL_EXT_pixel_buffer_object GL_EXT_point_parameters GL_EXT_polygon_offset_clamp GL_EXT_post_depth_coverage GL_EXT_provoking_vertex GL_EXT_raster_multisample GL_EXT_rescale_normal GL_EXT_secondary_color GL_EXT_separate_shader_objects GL_EXT_separate_specular_color GL_EXT_shader_image_load_formatted GL_EXT_shader_image_load_store GL_EXT_shader_integer_mix GL_EXT_shadow_funcs GL_EXT_sparse_texture2 GL_EXT_stencil_two_side GL_EXT_stencil_wrap GL_EXT_texture3D GL_EXT_texture_array GL_EXT_texture_buffer_object GL_EXT_texture_compression_dxt1 GL_EXT_texture_compression_latc GL_EXT_texture_compression_rgtc GL_EXT_texture_compression_s3tc GL_EXT_texture_cube_map GL_EXT_texture_edge_clamp GL_EXT_texture_env_combine GL_EXT_texture_env_dot3 GL_EXT_texture_filter_anisotropic GL_EXT_texture_filter_minmax GL_EXT_texture_integer GL_EXT_texture_lod GL_EXT_texture_lod_bias GL_EXT_texture_mirror_clamp GL_EXT_texture_object GL_EXT_texture_shadow_lod GL_EXT_texture_shared_exponent GL_EXT_texture_sRGB GL_EXT_texture_sRGB_R8 GL_EXT_texture_sRGB_decode GL_EXT_texture_storage GL_EXT_texture_swizzle GL_EXT_timer_query GL_EXT_transform_feedback2 GL_EXT_vertex_array GL_EXT_vertex_array_bgra GL_EXT_vertex_attrib_64bit GL_EXT_window_rectangles GL_EXT_import_sync_object GL_NVX_shared_sync_object GL_IBM_rasterpos_clip GL_IBM_texture_mirrored_repeat GL_KHR_context_flush_control GL_KHR_debug GL_EXT_memory_object GL_EXT_memory_object_win32 GL_NV_memory_object_sparse GL_EXT_win32_keyed_mutex GL_KHR_parallel_shader_compile GL_KHR_no_error 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GL_NV_query_resource GL_NV_query_resource_tag GL_NV_register_combiners GL_NV_register_combiners2 GL_NV_representative_fragment_test GL_NV_sample_locations GL_NV_sample_mask_override_coverage GL_NV_scissor_exclusive GL_NV_shader_atomic_counters GL_NV_shader_atomic_float GL_NV_shader_atomic_float64 GL_NV_shader_atomic_fp16_vector GL_NV_shader_atomic_int64 GL_NV_shader_buffer_load GL_NV_shader_storage_buffer_object GL_NV_shader_subgroup_partitioned GL_NV_shader_texture_footprint GL_NV_shading_rate_image GL_NV_stereo_view_rendering GL_NV_texgen_reflection GL_NV_texture_barrier GL_NV_texture_compression_vtc GL_NV_texture_dirty_tile_map GL_NV_texture_env_combine4 GL_NV_texture_multisample GL_NV_texture_rectangle GL_NV_texture_rectangle_compressed GL_NV_texture_shader GL_NV_texture_shader2 GL_NV_texture_shader3 GL_NV_transform_feedback GL_NV_transform_feedback2 GL_NV_uniform_buffer_unified_memory GL_NV_vertex_array_range GL_NV_vertex_array_range2 GL_NV_vertex_attrib_integer_64bit GL_NV_vertex_buffer_unified_memory GL_NV_vertex_program GL_NV_vertex_program1_1 GL_NV_vertex_program2 GL_NV_vertex_program2_option GL_NV_vertex_program3 GL_NV_viewport_array2 GL_NV_viewport_swizzle GL_NVX_sysmem_buffer GL_NVX_conditional_render GL_NVX_linked_gpu_multicast GL_NV_gpu_multicast GL_NVX_gpu_multicast2 GL_NVX_progress_fence GL_NVX_gpu_memory_info GL_NVX_multigpu_info GL_NVX_nvenc_interop GL_NV_shader_thread_group GL_NV_shader_thread_shuffle GL_KHR_blend_equation_advanced GL_KHR_blend_equation_advanced_coherent GL_OVR_multiview GL_OVR_multiview2 GL_SGIS_generate_mipmap GL_SGIS_texture_lod GL_SGIX_depth_texture GL_SGIX_shadow GL_SUN_slice_accum GL_WIN_swap_hint WGL_EXT_swap_control

Note that this machine is running Windows 11 Pro. Lightroom is misidentifying it as Windows 10.

Report · May 25, 2023

"DirectX: NVIDIA RTX A4500 Laptop GPU (31.0.15.1694)"

That driver is nearly a year old. Download the latest Studio driver (531.61) from here:

https://www.nvidia.com/download/driverResults.aspx/204244/en-us/

If that doesn't help, download the latest Game Ready driver (532.03):

https://www.nvidia.com/download/driverResults.aspx/204970/en-us/

Game Ready drivers are not always better.

Report · May 27, 2023

I am using the driver that's recommended by Dell.

Report · May 25, 2023

"Note that this machine is running Windows 11 Pro. Lightroom is misidentifying it as Windows 10."

It's a longstanding buglet that Adobe hasn't prioritized:

https://community.adobe.com/t5/lightroom-classic-bugs/p-sdk-and-help-gt-system-info-report-the-wrong...

Report · May 30, 2023

Any thoughts about this?

I've downgraded to 12.2.1 and everything is fast again. There's something problematic about 12.3.

Report · May 26, 2023

Yes!! 12.3 is way slower on my computer (Mac Studio 2022, Apple M1 Ultra, 128 GB RAM). I had to downgrade to 12.2.1 a few times now because 12.3 is just not usable.

Report · May 27, 2023

It not much consolation knowing that it's not just me, but it helps.

It was a good suggestion to downgrade to 12.2.1. I just downgraded to that version and now Lightroom is running at the previous speed again. Something about 12.3 is unusably slow when dealing with a volume workflow. It's very interesting that you're seeing the same slowness with the Mac version that I'm seeing on the PC version.

Report · May 27, 2023

Well, I downgraded to LR 12.2.1 and the previous speed is back. This points to something about 12.3 being problematic on my machine.

I also noticed that with 12.3, you have to click an image in the filmstrip, you have to click the image itself rather than anywhere with that cell. That was a real nuisance.

Report · May 28, 2023

Same issue for me. Lightroom was blazing fast up until the previous update, now it takes 2 to 3 seconds to load every image in the editing panel, a lag not suitable for big volume editing.

Macbook Pro 16 with M1 Max32 and 64gbram.

Report · May 30, 2023

That's exactly the type of behavior that I was seeing as well.
I've downgraded to 12.2.1 and everything is fast again.

Report · May 30, 2023

Unfortunately I'm using the new Nikon z8 which is not compatible with 12.2.1, so I have no options. editing with smart previews is viable, I'm using that for the time being, but I often need to zoom so I'm back at the start.

Hope to see a fix very soon.

Report · May 30, 2023

Ah, that's too bad. It would be helpful for Adobe to acknowledge the issue so we know that it's being addressed.

Report · May 30, 2023

One common cause of "Lightroom X.x was working great but when I installed Lightroom X.x+1 it was slow but when I revert to X.x it speeds up again" is a bad install. When there are nebulous, vague or not-widespread complaints of slowness it is good to rule out the install itself.

Clean Lightroom Install Procedure

Close Lightroom
Restart the computer
Use the Adobe Creative Cloud App to uninstall Lightroom
Restart the computer
Install Lightroom via the Creative Cloud App without launching any other programs.
Restart the computer
Launch Lightroom
Wait 5 minutes

If speed doesn't improve after this procedure, reset preferences

This procedure works for both Lightroom Classic and Lightroom Desktop. If you are using Lightroom Desktop it can change the location of your local storage. Please review this setting after resetting preferences.

Reset Procedure:

1. Close Lightroom.

2. Hold down [Alt/Opt]+[Shift] while restarting Lightroom.

3. Overwrite the Preferences when prompted by the dialog.

4. Close Lightroom.

5. Restart Lightroom.

Those two steps will usually weed out the bad installation as a cause.

If after carefully completing those steps you still perceive slowness, it is time to provide very specific information about the nature of the slowness.

Rikk Flohr - Customer Advocacy: Adobe Photography Products

Report · Jun 08, 2023

I can confirm I uninstalled and reinstalled once with the Adobe cleanup tool, then reset preferences, and Lightroom was behaving slow as previously.

However, I did one more uninstall and reinstall of Lightroom alone as you stated, and now it seems to work very well.

Very strange behaviour and I only put 1-2 hours on the new install so let's see if it holds up! This shouldn't really be necessary but at least I can work well again 🙂

Report · Jun 08, 2023

paging @FrostyOfTheNorth and @peterringenberg who shared the issue for a feedback!

Report · Jun 12, 2023

Hi,

I've been through these steps and lightroom is still brutally slow in the develop module. I also changed to a previous version and it was fast again, so it's defintely something to do with the new version. I now have the new NIkon Z8 so I have to use the latest version of lightroom. I can hardly work like this.

My system info is:

Lightroom Classic version: 12.3 [ 202304101834-a085245c ]
License: Creative Cloud
Language setting: en-AU
Operating system: Mac OS 13
Version: 13.3.1 [22E261]
Application architecture: arm64
Logical processor count: 10
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 65,536.0 MB
Real memory available to Lightroom: 65,536.0 MB
Real memory used by Lightroom: 20,095.7 MB (30.6%)
Virtual memory used by Lightroom: 438,867.2 MB
Memory cache size: 4,784.7MB
Internal Camera Raw version: 15.3 [ 1451 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 2508MB / 32767MB (7%)
Camera Raw real memory: 2508MB / 65536MB (3%)
Standard Preview Size: 5120 pixels
Displays: 1) 5120x2880, 2) 3456x2234

Graphics Processor Info:
Metal: Apple M1 Max
Init State: GPU for Export supported by default
User Preference: Auto

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/mickeyross/Pictures/Weddings/Jerinte-Connaugh/Jerinte-Connaugh.lrcat
Settings Folder: /Users/mickeyross/Library/Application Support/Adobe/Lightroom

Installed Plugins:

Config.lua flags: None

Report · Oct 22, 2023

I used the Clean Lightroom Install Procedure above to upgrade to LrC 13.0.1. I also installed the latest Dell-recommended GPU driver. I've edited about 200 photos and so far speeds seem back to normal.

So that's good, but now with this version I'm hampered by this bug: https://community.adobe.com/t5/lightroom-classic-bugs/p-unable-to-advance-to-the-next-photo/idc-p/14....

Report · Jun 11, 2023

Try increasing the cache setting and purging it, worked for me at least

Report · Aug 08, 2023

I've done that plenty. That has not helped.

Report · Aug 08, 2023

I have exactly the same issues in Develop Mode.

Infuriating.

Report · Aug 08, 2023

What version of Lightroom are you on?

I've stayed on LR 12.2.1 because of this issue with 12.3. I'm in the middle of my busy season and I don't have time to mess with later versions that slow down my workflow.

Adobe Community

Lightroom Classic 12.3 slow?