Pc INFINITE feedback

Hello,

I have a 7700k and 2080 super, custom water-cooled - Game runs between 35-45 fps seemingly on ultra, and down to low on 3440x1440 display. Also getting a lot of screen flicker, but intermittently, but it will be like whole screen flashes pretty much.
FPS is a problem…

ALSO, switching keyboard bindings in-game, causes my game to crash. When re-launching the game, all of my keyboard bindings are reset to default (THIS HAPPENED ONCE). Anyone else?
BUT, seems to be only, and specifically the push-to-talk button with either my \ or / key. strange?

No other issues yet, will update as the weekend goes on trying to break the game.