Lag and stuttering
I bought my Macbook pro 15" mid 2015 a couple of days ago, whenever I use iTunes and scroll down it drops the fps so low it's unusable, when I've been using an IDE like Atom or Xamarin Studio there is a notable lag when moving around my code, also when swiping between virtual desktops sometimes lags.
Should I take my laptop back to the Apple store to get it checked out? Or is this a common problem with OSX.
MacBook Pro with Retina display, OS X El Capitan (10.11.3)