Lightroom GPU Acceleration failure after MAC Update, common fixes not working

[geoffriccio]

I recently updated by MAC to Monterey 12.7.6. Since then Lightroom has been incredibly slow. Looking into the problem, I noticed GPU Acceleration was only being applied to the display and not to image processing. This option, in fact, was greyed out. After some research, I did the common 'fix' of deleting the camera raw config GPU .txt file. This did not work, and the option is still greyed out. Below are my specs, please let me know how to fix this issue:

Lightroom Classic version: 13.5.1 [ 202408271704-d15d09cd ]
License: Creative Cloud
Language setting: en-US
Operating system: Mac OS 12
Version: 12.7.6 [21H1320]
Application architecture: x64
Logical processor count: 8
Processor speed: 2.2GHz
SqLite Version: 3.36.0
Power Source: Plugged In, 100%
Built-in memory: 16,384.0 MB
Dedicated GPU memory used by Lightroom: 2.0MB / 1,536.0MB (0%)
Real memory available to Lightroom: 16,384.0 MB
Real memory used by Lightroom: 830.5 MB (5.0%)
Virtual memory used by Lightroom: 37,581.0 MB
Memory cache size: 0.0MB
Internal Camera Raw version: 16.5 [ 1954 ]
Maximum thread count used by Camera Raw: 5
Camera Raw SIMD optimization: SSE2,AVX,AVX2
Camera Raw virtual memory: 0MB / 8191MB (0%)
Camera Raw real memory: 2MB / 16384MB (0%)

Cache1:
NT- RAM:0.0MB, VRAM:0.0MB, Combined:0.0MB

Cache2:
m:0.0MB, n:0.0MB

U-main: 92.0MB

Standard Preview Size: 2880 pixels
Displays: 1) 2880x1800

Graphics Processor Info:
Metal: Intel Iris Pro Graphics
Init State: GPU for Display supported by default
User Preference: GPU for Display Enabled
Enable HDR in Library: OFF

Application folder: /Applications/Adobe Lightroom Classic
Library Path: /Users/ZBook/Pictures/Lightroom/Lightroom Catalog-2-v13-3.lrcat
Settings Folder: /Users/ZBook/Library/Application Support/Adobe/Lightroom

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

Config.lua flags:

[dj_paige]

Dedicated GPU memory used by Lightroom: 2.0MB / 1,536.0MB (0%)

and

Graphics Processor Info:
Metal: Intel Iris Pro Graphics

I don't think this hardware can run the GPU acceleration for image processing in LrC. Not enough memory, not enough power.

[geoffriccio]

Thanks for the response. Whats weird is the sudden change in performance post-update. I assumed it messed this all up, but given what you're saying I'm not sure I'm on the right path

[dj_paige]

I would imagine the right path is to get a better GPU.