Big Sur Lagging on i9 Pro
Animations, mouse cursor movement and just about every UI element on Big Sur incredibly. Slow.
Question marked as
Startup in Safe Mode. https://support.apple.com/en-gb/HT201262
Select your account and login.
Test.
Log out of your account.
To leave Safe Mode, click Apple logo in the menu bar and choose “Restart”.
If you find your Mac is running slowly, there are a number of potential causes that you can check.
https://support.apple.com/guide/mac-help/if-your-mac-runs-slowly-mchlp1731/mac
