I know there's a lot of placebo going on in here. However, I was having zero issues with stutter or performance until I decided to change graphics settings, using a 4080 super I figured I could just turn everything to max turn v sync off and let rivatuner cap my fps just below my 120 fps. But I had horrible stuttering.
Before I changed settings it was running at 60 fps with v sync on no stutters. If anyone here is using rivatuner/afterburner to cap their frame rate I suggest not doing that and turn vsyn back on in the FIFA menu. There's an option in FIFA to set it at 90 fps. Turn vsync back on. Now the game should be capping your frame rate at 90 without afterburner/rivatuner doing anything. I didn't even know the game had performance problems before going into settings and changing everything and it stuttered horribly with low GPU usage etc.