Significant performance lag with Mac Mini M2 in Lightroom Classic

[Paul from Montreal]

I have a new Mac Mini M2, 32 MB RAM, 10 core CPU and 16 core GPU,  1TB SSD

I am having a lot of difficulty nailing down where the lag is coming from on my Mac Mini M2. It can hang for 5-7 seconds just to render an image in the timeline. Cannot get the rubber stamp tool to behave without making the machine act like an anemic 2010 Intel Macbook. A lot of spinning beachballs all the time.

I have 32 MB RAM and 1TB SSD. Ventura OS. It is acting much slower than my Macbook Air M1.

Things I have tried:

Changing the preview size to Standard

Changing the preview size to 2000px

Changing the use of the GPU to Automatic

Changing the GPU to Custom ( use for export)

Changing the use of the GPU to Off

Never had this much trouble with the M1...

Any help would be much appreciated

[Ian Lyons]

It would be helpful if you could post a copy of your System Info. You can obtain same from the LrC Help > System Info menu item as shown in attached screenshot.

[Paul from Montreal]

Hello, thank you for responding, here is the system profile:

Lightroom Classic version: 12.5 [ 202308091523-68a7abd6 ]
License: Creative Cloud
Language setting: en-CA
Operating system: Mac OS 13
Version: 13.5.0 [22G74]
Application architecture: arm64
Logical processor count: 10
Processor speed: NA
SqLite Version: 3.36.0
Built-in memory: 32,768.0 MB
Real memory available to Lightroom: 32,768.0 MB
Real memory used by Lightroom: 1,027.8 MB (3.1%)
Virtual memory used by Lightroom: 407,297.0 MB
Memory cache size: 32.4MB
Internal Camera Raw version: 15.5 [ 1595 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2
Camera Raw virtual memory: 28MB / 16383MB (0%)
Camera Raw real memory: 30MB / 32768MB (0%)
Standard Preview Size: 2880 pixels
Displays: 1) 6016x3384

Graphics Processor Info:
Metal: Apple M2 Pro
Init State: GPU for Export supported by default
User Preference: Auto

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/Shared/Lightroom/Lightroom Catalog.lrcat
Settings Folder: /Users/studio/Library/Application Support/Adobe/Lightroom

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

Config.lua flags: None

[dwootton]

Did you get an update on this as I have the same issue.

[KR Seals]

I notice from your info, Lightroom Classic is only using 3.1% of the 32GB memory. What else is running on the computer at the same time? You can run the application "Activity Monitor" to see. 

My comment may not be applicable. I checked my LrC System Info on both Win 11 and Mac OS 14 and it is using between 3-5%. It's stil worth checking Activity Monitor though.

[Bob Somrak]

How much internal disk space do you have left?

Increase you camera raw cache size in preferences

[Paul from Montreal]

Sorry for the slow response, but I have 400 GB of disk space left