Playing on win 11 and it lags really bad. any known fixes?

As soon as the game starts I have a glowing cross and then the game crashes. Major graphics glitches. How can I fix it?

I played all the tutorials, yet on the first mission for the Malus, I had to restart several times to even get five minutes in! How am I supposed to maximize my damage to enemy fighters? Do I just suck?

i cant see anything when i launch the game, there just appears to be a neon circular cross and just pulls around the screen with the main menu video. the rest of the screen is black.

I have installed this game in my PC, it run very laggy. My PC spec is abouve the min req, and run with win 10. Can anyone give me advice?