P: Slow UI when using Mac and Custom Display Profile

For all of you having slowdowns related to your custom monitor profiles, it might be worth re-calibrating and re-profiling with different software to see if a profile generated by a different algorithm will allow you to stay in a color-managed workflow.

DisplayCal & ArgylCMS are free, open source color management & profiling tools that are worth trying.  Photography Life just recently did a thorough write-up on how to use them:

https://photographylife.com/how-to-calibrate-apple-mac-monitor

The article is focused on using them on a Mac but they also work on Windows PCs.

Same issue here. Extremely slow on a MacPro 5.1. It only gets back to normal when using "Apple rgb" or "sRGB" profile. With any other profile it's damn slow.

This thread is being merged into an authoritative thread for better tracking and response. 

It sounds like your issue is unrelated to this thread. Have you started a fresh thread with your system information?

Hey Victoria, 

thx for the quick reply. It's 10.1.

The "downgrade" to 9.4. worked  and seems to solve the problem. (despite that the Catalogue can`t be used anymore.....)

I will try and "downgrade" PS as well....

Hey y'all, 

I updated my iMac 27" late 2015 to Big Sur at now I am facing the following problems. 

Develop Module in LRC and LR and Camera RAW make the Computer freeze and force an automated restart.

I updated and reinstalled LR, LRC and PS already.

What can I do? 

Thanks for your help

Ecki

I agree with you there. Even though somehow I now have two computers with LR10.1 running without the slowness, but since this is such a mystery I don't trust using it in case the slowness comes back. 

Yeah - both nvram and smc reset. There’s clearly a configuration-specific bug at play here. I’m not going to spend more time troubleshooting this. There’s absolutely nothing wrong with either my hardware or software setup. This one’s for Adobe to figure out...

*Ron_Pfister Did you try zaping the P-Ram. I am still scratching my head as to why my 5.1 had that slow problem and now does not. What could I have done that caused the change?