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This is continuing the earlier thread. On my 2020 Mini the mouse lag problem only began after update to 11.6 or possibly the update before that. I tried following the suggestion to select "Reset the Bluetooth module". That locked up the mouse cursor even though it's a USB mouse (Apple Pro Mouse). Perhaps that is a clue for Apple. I don't see any option to change its polling rate. Apparently that is what is needed.
Mac mini, macOS 11.6
Surprise! I switched to a different mouse, same model Apple USB optical Pro Mouse. Problem solved.
Surprise! I switched to a different mouse, same model Apple USB optical Pro Mouse. Problem solved.
Try this. Apple Support guided me through this and it worked immediately!
https://support.apple.com/en-us/HT204063
Glad it worked for you, but the page says it is only for Intel processors. The Mini's processor is Apple M1.
Mouse lag Big Sur continued
