I can't delete a kext, I can't install a kext (RazerHid.kext) even when whitelisting it's TeamID. There's so much stuff we can't do on Terminal any more as power users. I think Big Sur just killed macOS. Spotlight is also useless now. I think Catalina is the solution to all the problems we're facing on Big Sur. And I thought software updates add functionality...

Ok, looks like WindowServer goes up to 100% when moving my Razer mouse around the screen, causing the whole Mac to slow down a lot. Using my Microsoft mouse only elevates it to 20%, which is still a hit, but not a lot to show a performance drop. Also, when moving the Razer mouse around, processes such as gamecontrollerd and com.apple.AppleHIDDriver show up taking a CPU hit. Not as much as WindowServer. These 2 extra processes don’t show up when moving the Microsoft mouse around. I think it has something to do with each mouses polling rate. 125Ηz vs 1000Hz in this case. But I can’t install the Synapse software to change the polling rate on the Razer and test it! I still have “Please authorise the kext through system preferences”, but there’s nothing on Security pane to allow.l, even after whitelisting the TeamID.

Do your Razer mice work on Big Sur? It's slowing my whole computer when moving it around. Dock is unusable!

This new Spotlight is ridicules. Utterly broken. Spotlight was a WEAPON. It's now a kids water gun. I used to brag about so much about spotlight, and laugh about Windows Search. I can't recognise which is worse now. Why Apple?

My Razer Deathadder lags my whole computer WHEN moving it, both on my Mac Mini & my MacBook Air. I cannot install Synapse just to see if it'll make a difference. I tried what avaddon said, but no avail. It was working on Catalina. Video: streamable.com/4gzafu