iTunes - movies will not load on apple tv and macbook pro

The past 3 to 4 months I have experienced significant delays when trying to load purchased content through iTunes on my Apple TV and MacBook. Prior to this I had not issues. This persists after several restarts of my computer, apple tv and router.

The most recent issue was this evening. I checked my internet speed and my connection is 134 Mbps so I know there is no issue with my connection. At this point I am not sure what else I can do to help improve the streaming quality. It is very frustrating and so much so that I am considering alternative platforms for future purchase.

Any guidance is greatly appreciated.

Thanks,

MacBook Pro Retina 13-inch (2012)

2.9 GHz i-7 processor / OS X El Capitan / 8 GB 1600 MHz DDR3

Apple TV 3rd Generation