FPS RUNNING LOWER THAN USUAL WITH LAST PATCH UPDATE>?

With the patch last night, I hoped into a game today 06/01/17, but was having a terrible time in game trying to figure out why not only me but others in the game as well, were experiencing Frame rate issues. I have plenty of space and memory on my laptop, I even turned down the settings in game, and it made it worse!! My laptop before today ran league at 120 FPS+ normally, someone please help!!