Lightroom Classic V 10.1.1 Problems with Mac
I have been on chat for 2.5 hours with Adobe help. After much trouble shooting, Version 9 works perfectly with Big Sur. The issue is the preview speed on Version 10.1.1. Jan 13th, there was an update to LR Classic and it totally messed up the preview speed in the program. If you have this issue, reinstall version 9 LR Classic. The issue is not with the graphics card or anything else with the computer, as all other programs work fine. Hopefully this will save you hours of aggravation.