Game runs flawless in fullscreen here. 1080p, all options maxed. Constant over 60fps.
It depends on what setup you got.
Not every body has a higher end video card like we do.
This is a Fix for people that have a 1gb or lower end video card.Be cause this game can be very taxing on a 512mb or lower video card.
Full screen Does tend to make most of the lag in this game for some reason.I have been playing the game in Windowed Maximized mode for over a year now and i see very very little issue.And all of my Settings are set to high or very high.