Hey,
So recently my FPS has been dropping from a stable 60 fps to 20 fps after playing for about 20 minutes and the only way to fix it is to restart my pc. I've run a virus scan, updated drivers, rolled back drivers, checked for background apps, lowered graphics etc but nothing works. My PC isn't overheating either as all my hardware is around 60 degrees. I have a gtx 760 MSI Twin Frozr. Something weird I noticed though however, is that when the fps drop occurs, when I alt+tab the game seems to be running fine in windowed mode however when I extend the size of my window to my screen the fps drop returns. Any help would be greatly appreciated!
I've attached some screenshots of before and after.
Note: The game was running fine and I haven't changed any of the setting, this issue seems to have popped up from nowhere.