LRC 15 Slow?

[JBedfordPhoto]

Since updating to LrCC 15 yesterday (Windows 11), I find my workflow much slower. Both the library and develop modules are slower, photos taking a long time (a couple of seconds) to paste settings in the develop module (despite LRCC receiving the input to paste immediately, the effects take a few seconds to apply to the image - this is true across both my Phase One tiff/raw files and my Fujifilm X series raw files).

Anybody else experiencing some slowdowns (as usual with a new LRCC release, unfortunately). 

[Rlrood]

Good to hear, and glad your machine now works almost as good as v14.5, but I have not had the same experience. After doing pretty much everything that has been suggest, including the culling thing as you described, my problem with v15.01 persisted...it continued to NOT run. So, Im back to 14.5 and will stay with it until v15.01 is fixed.

[JCNWB]

i was on lightroom 13 and previously when i import photos or build smart preview its faster and not so laggy. now its laggy slow and takes longer to import and export. what am i doing wrong?

[nikunj.m]

Hi, thanks for reaching out! 

Please go to the Help menu in Lightroom Classic, then System Info, and copy the text. You can share the info with us by either pasting it as a reply here or in a text file and sharing the file with us. 

If you've upgraded your old catalog to work with the latest version, try creating a new catalog to see if there is a difference in performance. 

You can also try optimizing the preferences of Lightroom Classic using the steps mentioned here: https://adobe.ly/4ioLTRS

Let us know how it goes! 
Thanks,
Nikunj

[JCNWB]

Lightroom Classic version: 15.0.1 [ 202511041508-dddee541 ]

License: Creative Cloud

Language setting: en

Operating system: Windows 11 - Home Premium Edition

Version: 11.0.26100

Application architecture: x64

System architecture: x64

Logical processor count: 20

Processor speed: 2.6GHz

SqLite Version: 3.36.0

Adobe GSDK Version: ...

CPU Utilisation: 1.0%

Power Source: Plugged In

Built-in memory: 16088.4 MB

Dedicated GPU memory used by Lightroom: 741.9MB / 3962.0MB (18%)

Real memory available to Lightroom: 16088.4 MB

Real memory used by Lightroom: 2894.2 MB (17.9%)

Virtual memory used by Lightroom: 5626.6 MB

GDI objects count: 1739

USER objects count: 3029

Process handles count: 7784

Memory cache size: 568.1MB

Internal Camera Raw version: 18.0 [ 2389 ]

Maximum thread count used by Camera Raw: 5

Camera Raw SIMD optimization: SSE2,AVX,AVX2

Camera Raw virtual memory: 1685MB / 8044MB (20%)

Camera Raw real memory: 1934MB / 16088MB (12%)

Cache1: 

Final1- RAM:197.0MB, VRAM:0.0MB, 422A8560.CR3

Preview2- RAM:21.0MB, VRAM:0.0MB, 422A8555.CR3

Final3- RAM:189.0MB, VRAM:0.0MB, 422A8556.CR3

NT- RAM:407.0MB, VRAM:0.0MB, Combined:407.0MB

Cache2: 

m:568.1MB, n:399.1MB

U-main: 141.0MB

System DPI setting: 120 DPI

Desktop composition enabled: Yes

Standard Preview Size: 1920 pixels

Displays: 1) 1920x1080

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

Graphics Processor Info: 

DirectX: NVIDIA GeForce RTX 3050 Ti Laptop GPU (32.0.15.8157)

Init State: GPU for Image Processing supported by default

User Preference: Auto

Enable HDR in Library: OFF

GPU for Preview Generation: Auto (S3_3)

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

Library Path: C:\Users\JC\Pictures\LRC-24-11-25\LRC-24-11-25.lrcat

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

Installed Plugins: 

1) AdobeStock

2) Flickr

Config.lua flags: 

Adapter #1: Vendor : 10de

Device : 25a0

Subsystem : 159c1025

Revision : a1

Video Memory : 3962

Adapter #2: Vendor : 8086

Device : 4626

Subsystem : 159c1025

Revision : c

Video Memory : 80

Adapter #3: Vendor : 1414

Device : 8c

Subsystem : 0

Revision : 0

Video Memory : 0

AudioDeviceIOBlockSize: 1024

AudioDeviceName: System Default - Speakers (Realtek(R) Audio)

AudioDeviceNumberOfChannels: 2

AudioDeviceSampleRate: 48000

Build: LR5x26

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 3050 Ti 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 581.57

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_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 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[nikunj.m]

Thanks for sharing the system info! Please try creating a new catalog and importing a few images into it to test as suggested earlier. Also, try the steps mentioned in the article shared above.

Further, there seem to be updated drivers available for the NVIDIA GPU you have on the system. Please ensure you have the latest Studio drivers installed on your computer.  

Thanks,
Nikunj

[johnrellis]

"DirectX: NVIDIA GeForce RTX 3050 Ti Laptop GPU (32.0.15.8157)"

That's the latest Studio driver for that graphics processor, so no need to update.

If the nikunj.m's steps don't help, try these steps one at a time, which have helped others with performance problems:

1. Disable Catalog Settings > Metadata > Automatically Write Changes To XMP.

2. Set these options in Preferences > Performance:

https://community.adobe.com/t5/lightroom-classic-discussions/lrc-15-slow/m-p/15605226#M419623 

3. Temporarily turn off all anti-virus / anit-malware packages, including Windows Defender.  If this helps, then add specific exclusions for the LR catalog folder and your photos folders.

[JCNWB]

i reinstalled and created a brand new catalogue already which is fustrating if i knew it was gonna be laggy i wouldve stuck with the older version

[AxelMatt]

....

Adapter #2: Vendor : 8086

Device : 4626

Subsystem : 159c1025

Revision : c

Video Memory : 80

....

By @JCNWB

It seems that you have an integrated GPU that's to be active.

The internal GPU can sometimes caused several issues. Open the Windows Device Manager, right-click the card's name and choose Disable.  

You can also try: How to set default GPU for apps on Windows 11 - Pureinfotech

[Igor263919677y16]

This is outrages, we pay for something and then we need to use our time to fix the crap that it is! LR is painfuly slow and it doesn't work! Can we finally have a proper fix on this? 

[AxelMatt]

@Igor263919677y16 I'm can understand your frustration, but complaining alone helps no one.

Computer configurations are so diverse that it is impossible to test every conceivable combination down to the smallest detail. Therefore, the developers also depend on the cooperation of the users.

Of course, new versions always have a few issues and/or areas for improvement. But here, too, Adobe relies on user feedback. Bug fixes take time. It doesn't help anyone if a problem is quickly resolved and then still doesn't work properly.

But anyway: In another thread to the same issue (you've posted already there) some users posted a solution that  helped them, ex here:

Gelöst: Re: LRC 15 Slow? – Seite 2 - Adobe Product Community - 15570529

Gelöst: Re: LRC 15 Slow? – Seite 2 - Adobe Product Community - 15570529

If this doesn't help please provide a copy of your 'System Info'. This can be get from the LrC Help > System Info menu item. There's a copy button in the System Info dialog. Press this button and paste the info into your next forum post.

[WillCheung]

我是一名专业摄影师，想报告一下我在使用 Lightroom Classic 时遇到的性能问题。

从Lightroom Classic 14.5.1升级到15.0版本后，我发现使用“修改照片”模块编辑照片时，在“胶片显示”面板中切换图像会出现卡顿和延迟。这个问题在14.5.1版本中并不明显，一切运行都流畅。

我后来升级到了Lightroom Classic 15.0.1版本，并进行了目录优化，但问题仍然存在。虽然15.0.1版本较15.0版本不断改进，但整体性能仍然远不如14.5.1版本流畅。

我希望您的团队能够尽快调查并解决这个问题，以改善“开发”模块中的编辑体验。

非常感谢您长期以来的努力和支持。

如果有更好的解决方案，请提供详细的故障和措施分步骤说明。

我的 macOS 版本是 Sequoia 15.7.1

正在使用 Mac 版 Studio MAX 2023

[Sameer K]

Hey, @WillCheung. Welcome to the Lightroom Community. I'll need more info to help you figure this out. Please share the system info from Lightroom Classic from Help > System info > Copy and paste into a text document > Upload and attach here. 

Where do you keep your Lightroom Classic catalog? Does the delay occur randomly, or after you've applied specific edits, or a number of edits, to the image, such as Lens Corrections, Denoise, and Masks? 

As primary steps, try this:

• Unplug additional displays & use only one by default.
• Monitor the Task Manager > Performance Tab for any unexpected read and write operations. 
• Lightroom Classic > Catalog Settings > Metadata > Uncheck 'Automatically Write Changes Into XMP.'
• Check this detailed response from our Expert: https://adobe.ly/4g6Cb4j

Let me know how it goes. Thanks!

Sameer K

(Type '@' and type my name to mention me when you reply)

[WillCheung]

Lightroom Classic 版本: 15.0.1 [ 202511041508-dddee541 ]
许可: Creative Cloud
语言设置: zh-Hans-CN
操作系统: Mac OS 15
版本: 15.7.1 [24G231]
应用程序架构: arm64
逻辑处理器数: 12
处理器速度: NA
SqLite 版本: 3.36.0
Adobe GSDK Version: 1.4.0.171

内建内存: 98,304.0 MB
Lightroom 使用的专用 GPU 内存: 4,147.7MB / 73,728.0MB (5%)
Lightroom 可用物理内存: 98,304.0 MB
Lightroom 使用的物理内存: 4,994.3 MB (5.0%)
Lightroom 使用的虚拟内存: 417,495.0 MB
内存高速缓存大小: 13.2MB
Camera Raw 内部版本: 18.0 [ 2389 ]
Camera Raw 使用的最大线程数: 5
Camera Raw SIMD 优化: SSE2
Camera Raw 虚拟内存: 816MB / 49151MB (1%)
Camera Raw 实际内存: 952MB / 98304MB (0%)

Cache1:
Final1- RAM:271.0MB, VRAM:1,236.0MB, _DSC2032.ARW
Final2- RAM:269.0MB, VRAM:983.0MB, _DSC2031.ARW
Final3- RAM:273.0MB, VRAM:1,226.0MB, _DSC2027.ARW
NT- RAM:813.0MB, VRAM:3,445.0MB, Combined:4,258.0MB

Cache2:
m:13.2MB, n:782.3MB

U-main: 275.0MB

标准预览大小: 2048 像素
显示: 1) 1920x1200

图形处理器信息:
Metal: Apple M2 Max
初始化状态: 默认支持使用 GPU 导出
用户首选项: 自动
在库中启用 HDR: 关闭
用于生成预览的 GPU：自动 (S5_72)

应用程序文件夹: /Applications/Adobe Lightroom Classic
图库路径: /Users/moment/Pictures/Lightroom/Lightroom Catalog.lrcat
设置文件夹: /Users/moment/Library/Application Support/Adobe/Lightroom

已安装的增效工具:
1) 插件参数
2) AdobeStock
3) LRT Export 7
4) Nik 6 HDR Efex

Config.lua 旗标:

catalog ：The catalog is stored by default at （pictures/lightroom）

Delay: The delay occurs after importing images, when selecting a photo. The image goes from blurry to sharp, similar to a loading process.No Lens Corrections, Denoise, or Masks have been applied.

There is only one monitor, and no additional monitors are connected.

Lightroom Classic > Catalog Settings > Metadata > Uncheck 'Automatically Write Changes Into XMP.' Check this detailed response from our Expert:

（This option to automatically write changes into XMP is already turned off.）

Performance: On macOS, there is only one active monitor. Each time a photo is clicked, only the %CPU spikes instantly from 2.x–3.x up to over 100.x。

[WillCheung]

@Sameer K  Are there still no results?

[AxelMatt]

Take a look here: Updated to LR Classic v15.0 and program is now ext... - Adobe Product Community - 15569367

Especially also here: Re: Updated to LR Classic v15.0 and program is now... – Seite 3 - Adobe Product Community - 15569367

[WillCheung]

@AxelMatt @Sameer K  It doesn’t seem to have any effect; the issue still persists.