I have an Apple TV 3rd Gen and when I AirPlay Mirror my 2011 MacBook Pro the video is choppy and I can hardly watch anything. I have a 2nd Gen Time Capsule router that is within 5 feet of the ATV. I have tried several settings changes and nothing I have tried has worked. Please any suggestions would be great! This is very annoying and was a feature I was looking forward to with this setup.