LRC Develop pane slows after macOS Sequoia update

[MightyAtomBoy]

After upgrading to macOS Sequoia (15.1.1) I'm experiencing slows in LRC (14.0.1), particularly in the Develop pane with masks (esp. subject detection) and Remove tools. I have a Mac Mini M2 Pro w 32GB RAM. Original files (CRAW) are stored on an SSD (W/R = 2300/2200). Switch Graphics Processor between Auto and Custom makes no difference. Any hints to improve and return performance to previous levels are most welcome.

[moving from bugs to discussions according to the community rules - Mod.]

[Sameer K]

Hey, @MightyAtomBoy. 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. 

Resetting Lightroom Classic won't delete your presets, or profiles. It'll only reset user preferences. Where do you keep your Lightroom catalog & the original images, internal, or external drive?

As primary steps, try this:

• Unplug additional displays & use only one by default.
• Check this detailed response from @Conrad_C: https://adobe.ly/4g6Cb4j

Let me know how it goes. Thanks!

Sameer K

(Use '@mention' to tag me when you reply)

[MightyAtomBoy]

Hi Sameer,

Many thanks for your assistance. Find system info attached. Catalog files are kept locally. Original files (CRAW) are stored on an external SSD (W/R = 2300/2200). 

I've made a few changes to Preview settings and will monitor for improvement, then work my way through your other suggestions.