Need more info. To be clear, Madden 21 runs great for me. The only issue I am aware of is that it may help to lock your framerate to 60fps in the madden graphics menu. i don't think this is the same as vsync. If you allowed it have an unlocked framerate it was all "herky-jerky" last year even though it was reporting a high frame rate. It's worth a try. Good Luck.
Edit: Saw you resolved it in the other thread. I'd still like to hear what your rig is and what video card is driving your 200hz monitor and at what resolution. Thanks!