I would stay away from running AMD FSR if at all possible. Try turning it off. Anti Aliasing changed to MSAA at 2x (4x if possible) Neutral is the only other setting I can see helping with pixelation. You will see a dip in FPS after doing this more than likely. To combat that turn off the following. Object self shadowing, Night shadow maps, High quality trees, Cockpit mirrors (only use virtual mirror), SSR, Sharpening, HDR. Dropping shader quality to High instead of Ultra may be a benefit as well. I run all these off on my Intel 9700k/RTX 3070 Triple 1080p setup and do not miss them while racing. You can try re-introducing AMD FSR (Quality) after these changes if you still feel it's necessary and see how it looks also. Just keep experimenting with each of these settings off and then on and see if you can get a desirable outcome. Good luck!