Please try this and report back to me if it solved your problem. I think the root of stuttering etc is Radeon Settings(Wattman).
My most successful current work around for all issues. DDU safemode, update to the newest drivers. Follow the simple instructions below given to me by another member. OC with AB. Monitor with GPU-Z. Basically you are nuking Radeon Settings(Wattman).
No anti lag, no image sharpening (you can use reshade if you really want it), but most importantly no more head aches.
"program files\AMD\CNext and delete everything.
open up task manager and shut things down and delete them
It's pretty hacky, but it works
you do need aticlxx, but that's all.
No graphics settings once you do this."
easier and less messy to install driver via inf in device manager.
you can also try 20.Q1.1 pro driver
I'll post this here to check on the followups, might also try it myself