Very slow after last update to 12. 2

Report · Mar 05, 2023

It's almost impossible and annoying to work on LR after today's update - I had to update to the newest version as the old one didn't see the RAW files from Canon R6 II. I work on iMac Ventura at this moment. I didn't check it on my laptop yet but will need to update it there as well.

Report · Mar 06, 2023

Are you running macOS 13.3.1 Ventura (the latest update) at the moment?

P.S. Correction should be macOS 13.2.1 Ventura.

Regards, Denis: iMac mid-2015, 5K 27”, GPU 2GB, Ram 24GB, HDD 3TB, macOS 11.7.4 BigSur,; LrC 12.2.1, Lr 6.2, Ps 24.1.1,; ACR 15.2,; Camera OM-D E-M1

Report · Mar 06, 2023

I'll help you figure this out. Thanks for sharing the info about the machine. I'll need the Lightroom Classic > Help > System info. Does it slow down after a specific set of steps? Is there a noticeable pattern to this behavior?

Besides Lightroom getting slow, check the Activity monitor to know if the RAM usage peak, abnormal temps, CPU usage, and unexpected read/write operations.

To begin troubleshooting, test some variables like:

Unplug any external peripherals & use wired input devices.
Unplug external drives.
Go to Lightroom > Preferences > Performance > Use Graphics Processor > Set it off if it is on Custom or Auto. If this shows you any differences, please check this article to troubleshoot further: https://helpx.adobe.com/lightroom-classic/kb/troubleshoot-gpu.html
Reset Lightroom Classic following the second (manual) method from this article: https://helpx.adobe.com/lightroom-classic/help/setting-preferences-lightroom.html

Let me know how it goes. Thanks!
Sameer K

Report · Mar 06, 2023

System Info:

Lightroom Classic version: 12.2 [ 202302032259-eb84d255 ]
License: Creative Cloud
Language setting: en
Operating system: Mac OS 13
Version: 13.2.1 [22D68]
Application architecture: arm64
Logical processor count: 8
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 16,384.0 MB
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 2,566.8 MB (15.6%)
Virtual memory used by Lightroom: 412,751.3 MB
Memory cache size: 45.9MB
Internal Camera Raw version: 15.2 [ 1381 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 6MB / 8191MB (0%)
Camera Raw real memory: 8MB / 16384MB (0%)
Standard Preview Size: 4480 pixels
Displays: 1) 4480x2520

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

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/bernadetakupiec/Desktop/LR Catalogs/from 21st May 2022 till 30th September 2022/from 21st May 2022 till 30th September 2022-v12.lrcat
Settings Folder: /Users/bernadetakupiec/Library/Application Support/Adobe/Lightroom

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Lightroom to Exposure
5) Nikon Tether Plugin

Config.lua flags: None

Report · Mar 06, 2023

Installed Plugins:
1) AdobeStock
2) Aperture/iPhoto Importer Plug-in
3) Flickr
4) Lightroom to Exposure
5) Nikon Tether Plugin

That Lightroom to Exposure plug-in. Plug-ins can be a cause of issues. This can change with updates, either Adobe or the third party.

Does looking at the plug-in manager indicate any issues/updates?
Does disabling that plug-in within plug-in manager change LrC performance after a restart of LrC?
Does the third party application. In this case Exposure have any issues.
Does the Exposure have full MACOS permissions/rights as LrC does?

Adobe Support Community

Very slow after last update to 12. 2