SLOW

[peyton_5371]

Lightroom has become incredibly slow. despite having storage or updates. I saw a whole thread of photographers also talking about this too. So I know it's not just me. I feel like this needs to be addressed as my lively hood is photography and this is taking wayyyyyy too long. 

[nicholas_1071]

Having the same issue.
We are all on new (or almost new) MacBook Pro's and the latest update has made Lightroom semi-unusable.
Extremely slow importing, merging takes 2-3x longer now. Editing seems to cause the computer to 'hang' with the spinning coloured wheel for a good 2 minutes per task.
It's taken our project completion time from about 2 hours to almost 6 hours. Not acceptable.
The previous versions had no such issues.

[nikunj.m]

Hi, thanks for reaching our and we are sorry about the trouble! 

Please go to the Help menu in Lightroom, 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. 

You can check if Lightroom has Full Disk Access on macOS using the steps suggested here: https://adobe.ly/4p5Rj6F

Let us know if it makes a difference! 
Thanks,
Nikunj

[nicholas_1071]

Lightroom version: 9.0 arm64 [ 20251017-1944-414afc8 ] (Oct 17 2025)
NGL Version: 1.42.0.5
WF Version: 8.0 58cbd19
VF Version: 1.0.164
HIL Version: 40501
CAI Version: c2pa-c/0.6.0 c2pa-rs/0.46.0
PH Version: 5.2.3
Adobe GSDK Version: 1.4.0.42
CR Version: 29.5.0.202509162212_6e7a997

Operating system: macOS
OS Version: macOS 26.0.1 (25A362)
Application architecture: arm64
Computer model: Mac14,7 / Apple M2
Logical processor count: 8
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 2,243.0 MB (13.6%)
Peak memory used by Lightroom: 2,377.0 MB
Memory cache size: 3,342.3 MB

Internal Camera Raw version: 18.0 [ 2389 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: Neon
Camera Raw virtual memory: 1151MB / 6144MB (18%)

Display: 2880x1800

Graphics Processor Info: Metal: Apple M2
Graphics Processor Detail: loaded: Yes, supported: Yes, compute: No, init: I2_GPU2, hard: fail_no_gpu2, soft: not_checked, al: No, dl: No
OS Media Capability: true

Application Folder: /Applications/Adobe Lightroom CC
Settings Folder: /Users/nicholasdarkes/Library/Application Support/Adobe/Lightroom CC
Library Folder: /Users/nicholasdarkes/Pictures/Lightroom Library.lrlibrary

[Aleke]

Hi @nicholas_1071, thanks for sharing your system info!
I noticed your report shows “compute: No” under Graphics Processor Info, which suggests Lightroom isn’t using GPU acceleration for certain tasks, and that can slow things down.
Could you check under Lightroom > Preferences > Performance to see if Use Graphics Processor is set to Off? If it is, try turning it on.

Another thing that can help is deleting the Camera Raw GPU config file:
Navigate to
/Users/[your username]/Library/Application Support/Adobe/CameraRaw/GPU/Adobe Lightroom/Camera Raw GPU Config.txt
Delete that file, then relaunch Lightroom.
If your Library folder is hidden, you can follow this guide to access it: https://adobe.ly/49Kgyqm
Thanks!
Alek