Goes from 80-90 FPS taxing to 2-5 FPS/stutter fest EVERY TIME after hitting ~60 knots during take off sequence

and you still fly in this resolution ?

Heck, I have two of these monitors and I expand the window at 1.4k resolution to make it 6888x1400 total

?

your former posts tell me a different story, also these one:

May be a good starting point to check possible settings: