I downloaded to game the day it was released on the Store. As I started playing I noticed a bunch of extreme slowdown all over the place. The framerate would start at a nice 60 fps, then would slow down for a few seconds, then speed back up, then slow down again. It's very aggravating and because of it I can't focus. I didn't have this problem in the original game.
I tried uninstalling then reinstalling the game. No luck. The same problem persisted.
I haven't heard anyone else complain about this, as everyone says the framerate is extremely smooth, so it must be something on my end, but I have no idea how to fix such a thing.