FPS capped at 60

Today after uninstalling and reinstalling league of legends, Ive noticed my FPS is down to 60 and stays there. I run on a Mac Desktop with Retina Display, and before I uninstalled I was getting 160fps on average. I checked the settings, the game is on low to medium specs just like usual. And I checked the fps cap setting and its set to uncapped. Not sure what the problem is now. Just some advice or help would be nice.

v/r,