Moving between images grows to 5-6 seconds after several hours of use

[fabio5CA7]

I am my wits end with this problem so much so i spent £2000 on buying a full new PC thinking it was my specs only find the issue still remains.

When i start LR - its fine, snappy! and after 40-50 minutes it slows down to taking 3-4 seconds to switch between images - after 2-3 hours it can take as long as 5-6 seconds. But why!!

My LR version is 12.3

PC Specs are

Intel i9-13900KF
Nvidia 3090 GPU
1TB NVME SSD Storage where i do my editing
Watercooled
64GB RAM

its only LR that bogs down - nothing else! i saw a thread here but its from 2017 and surely they will of fixed the issue by then - but still that resolution doesnt work now a days

What is the solution - i have over 20 cores of CPU and a machine that just isnt being utilised to its full potential

Nvidia graphics card drivers are up todate - i have tried everything i can think of

Windows 11 aswell by the way

[fabio5CA7]

to add to this - the only way to get it fast again is to reboot...... but i cant keep rebooting every 30-40 minutes just to keep editing i shouldnt need to

[dj_paige]

it slows down to taking 3-4 seconds to switch between images - after 2-3 hours it can take as long as 5-6 seconds. 

Library module or Develop Module or elsewhere?

Are there any other symptoms of slowdown?

[fabio5CA7]

Only in develop mode - library mode is never slow , and no other symptoms - its not like the PC is struggling doing any other task 

[johnrellis]

Please do the LR menu command Help > System Info and copy/paste the entire contents here so we can see exactly which versions of hardware and software LR thinks you're running.

[fabio5CA7]

Lightroom Classic version: 12.3 [ 202304101834-a085245c ]

License: Creative Cloud

Language setting: en

Operating system: Windows 10 - Business Edition

Version: 10.0.25346

Application architecture: x64

System architecture: x64

Logical processor count: 32

Processor speed: 2.9GHz

SqLite Version: 3.36.0

CPU Utilisation: 0.0%

Built-in memory: 65303.3 MB

Dedicated GPU memory used by Lightroom: 1151.7MB / 24340.0MB (4%)

Real memory available to Lightroom: 65303.3 MB

Real memory used by Lightroom: 1532.3 MB (2.3%)

Virtual memory used by Lightroom: 2870.3 MB

GDI objects count: 815

USER objects count: 3006

Process handles count: 4179

Memory cache size: 49.1MB

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: 168MB / 32651MB (0%)

Camera Raw real memory: 198MB / 65303MB (0%)

System DPI setting: 96 DPI

Desktop composition enabled: Yes

Standard Preview Size: 2560 pixels

Displays: 1) 2560x1440, 2) 1920x1080, 3) 1920x1080

Input types: Multitouch: No, Integrated touch: No, Integrated pen: No, External touch: No, External pen: Yes, Keyboard: No

Graphics Processor Info: 

DirectX: NVIDIA GeForce RTX 3090 (31.0.15.3550)

Init State: GPU for Export supported by default

User Preference: Auto

Application folder: C:\Program Files\Adobe\Adobe Lightroom Classic

Library Path: C:\Users\User\Pictures\2023_Catalogue\2023_Catalogue.lrcat

Settings Folder: C:\Users\User\AppData\Roaming\Adobe\Lightroom

Installed Plugins: 

1) AdobeStock

2) Flickr

3) Imagely

4) Nikon Tether Plugin

5) Pic-Time

6) Pixieset

Config.lua flags: None

Adapter #1: Vendor : 10de

Device : 2204

Subsystem : 40451458

Revision : a1

Video Memory : 24340

Adapter #2: Vendor : 8086

Device : a780

Subsystem : d0001458

Revision : 4

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: $$$/dvaaudiodevice/SystemDefaultAndEffectiveDeviceName=System Default - Speakers (Realtek(R) Audio)#{comment}DVAAU-4201250: Open the audio hardware preferences page.

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: Uninitialized

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 GeForce RTX 3090/PCIe/SSE2

GL_SHADING_LANGUAGE_VERSION: 4.60 NVIDIA

GL_STENCIL_BITS: 8

GL_VENDOR: NVIDIA Corporation

GL_VERSION: 4.6.0 NVIDIA 535.50

GPUDeviceEnabled: false

OGLEnabled: true

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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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[johnrellis]

[This post contains formatting and embedded images that don't appear in email. View the post in your Web browser.]

"DirectX: NVIDIA GeForce RTX 3090 (31.0.15.3550)"

This says you've got driver version 535.50 installed, which is very curious, since it isn't listed in recent drivers at Nvidia.com (see below).  Did you install it from a third-party site?  I suggest installing the latest Studio driver (531.61) for that card from Nvidia.com.

[fabio5CA7]

Thanks for spotting this - i think nvidia released a new driver today so i had a slightly different version when i went to upgrade but still the same

I removed all my drivers/nvidia and started from scratch to the latest studio version -

after 2-3 hours of editing it was taking 7 seconds to change an image vs 2-3 seconds on first boot.

[johnrellis]

So the new driver hasn't made an improvement?

[fabio5CA7]

Sorry i wasnt clear - no improvement at all after this - still the same issue remains 😞 

[johnrellis]

I wonder if preview generation is causing the slowth.  Normally, LR is pretty good about generating LR previews in background unobtrusively, but maybe not in your case. You could try this experiment:

1. Set Catalog Settings > File Handling > Standard Preview Size to something smaller than your display size, e.g. 1440 pixels,  with Preview Quality: Medium.

2. Uncheck the option Settings > General > Replace Embedded Previews With Standard Previews During Idle Time.

3. Uncheck the option Preferences > Performance > Generate Previews In Parallel.

Now as you edit in Develop, LR shouldn't try to generate Library previews in background while you edit. They'll only get generated on demand when you scroll the grid to new positions or open images in Loupe view.  And the previews could be smaller than what you've previously been using.

If this improves the situation, then you can experiment those three options invididually.

[johnrellis]

Also:

4. Change Preferences > Performance > Camera Raw Cache Settings > Maximum Size from 5 to 20 GB.

[fabio5CA7]

So 1 -> i have done

2/3 are already sat as you mentioned 😞

Also preview cache is already set to 50gb also 

The annoying thing is i see nothing in task manager that indicates any hang ups or anything that is steaing memory or CPU so its hard to find the cause of this