Since is use vsync because of my tft, I usually have 60 FPS. At the start it doesn´t go below 50. Having turned vsync off I get 140 FPS, with full grid about 90 FPS.
But playing with vsync turned on is much more fun, because even if there is no tearing without vsync the perception of speed is less fluid caused by the leaps of FPS.
The question is: What the hell do I need 140 FPS, when my tft only shows 60 FPS? In addition to that games are more fluid at constant 60 FPS.
By the way, 50 FPS are well playable, too.