Aye marvel are refusing to make a fix because it's not Apple
https://youtu.be/eVyo6-aLSNoI believe kabam has fixed the problem, on the video linked above I have proof that the game is running at 120 fps on max setting through the Razer cortex app. I used the developer option to show the fps (below winter soldiers health bar).
@ItsDamien that's the settings I always use