I am pouring myself a some Wild Turkey and Pepsi and going to watch it now. I will report back after I have finished!
I’m watching it now. When I first pulled it up the bar indicator on the player window constantly shows a low-speed connection so it had to buffer and wait consistently.
I did some searching about slow Amazon Prime and happened on this trick. In the URL window the original link comes up with a whole bunch of stuff after the movie name and code number. The poster said to replace all that goop after the movie code with “?diag=true” something like this
http://www.amazon.com/Man-High-Castle/dp/B00RSGFRY8/?diag=true.
I did this and it (the bars) shot up to full bars and the HD icon lit blue. Works great.