I installed the Logitech Options+, their new driver app and I think it cured my laggy mouse issue! It was only happening in Logic for me so I thought for sure it was a Logic issue but in that article it was the first thing to try, so I did.
I also bumped up to 12.6.1 with no issues. Will probably hang out here for awhile.
Funny I had tried some of this stuff before. Including deleting the plists.
And now I just noticed that I have neither:
/Library/Preferences/com.apple.Bluetooth.plist
or
~/Library/Preferences/ByHost/com.apple.Bluetooth.XXXXX-XXXX-XXX-XXXX.plist
So they must never have been rebuilt! Just tried safe-mode and they didn't get rebuilt either.
So don't try that fix anyway!
Funny I had tried some of this stuff before. Including deleting the plists.
And now I just noticed that I have neither:
/Library/Preferences/com.apple.Bluetooth.plist
or
~/Library/Preferences/ByHost/com.apple.Bluetooth.XXXXX-XXXX-XXX-XXXX.plist
So they must never have been rebuilt! Just tried safe-mode and they didn't get rebuilt either.
So don't try that fix anyway!
My biggest problem in 12.6.1 is the Apogee Control 2 software that is required to run my Duet 2.
Dreadful app this Control 2 version. The longer my iMac is running the more and more my Duet2 becomes sluggish when just changing volume. Eventually after my iMac has been running for say a week all sorts of weird audio problems like no audio playing at all with any music App.
The fix is to restart my iMac.
Looks like Apogee arenโt too interested in updating this version, which is now several versions behind the latest used for current products.
So, I figured out what was causing like 90% of the jank that was happening with my Mac Studio and Monterey: SwitchResX
Just disabled it (daemon, in-app setting) and all is well...actually really, over a week now...not even going to bother uninstalling it tbh (if it's not broken etc. etc.)
(I didn't bother trying to update it, though it was definitely a recent version if not latest....anyway using BetterDisplay instead...way cooler app that does quite a lot more).