I have a 5700XT and am using the 20.10.1 driver from the time of the initial release of MSFS.
To prep for SU5 I uninstalled flight sim, and anything related to flight sim. I cleaned the registry.
So my installation is as “clean” as I could make it. GUI issues not withstanding (key binding et. al.) and some third party software glitches, my performance experience is the best yet. Smooth as butter, with no “hangs” or “freezes” or “stutters.”
Pretty good overall I’d say, performance-wise…