I don't get why this has not been fixed for how long it has been in the game and is now a module on sale. When ever the radar on the Mig21 sees the ground my game just drops from 150 FPS to 10-20 FPS. I have looked for ways of fixing this and found nothing that actually works. If any one knows if they are working on fixing this or if there is a fix that would be awesome, just putting this out here to hopefully get some attention for this problem.