Traffic Speed / Streaming Video / Traffic Shaping

I along with several other COX HS Internet users have had major issues with streaming video using our Cox HS Internet Service.  The main topic of concern appears to be that we users are unable to stream HD Video via Netflix as one example on the Cox HS Internet Service.  When we use speedtest.net to test our internet we get blazing fast speeds.  However when we stream netflix it downloads at just enough speed to steam a movie without buffering.  However when the same movie is downloaded using HD resolutions, the movie can not stream fast enough to play or even not buffer every thirty seconds.  I did a little experiment when we were having issues to confirm the source of the problem.  At the same time I could not stream a movie using Cox HS Internet, I switched my Apple TV to use my IPad's Personal Hotspot which runs through 4G service, and I confirmed the same movie streamed in HD to the same Apple TV.  So I know this issue was specific to the Cox HS Internet service.  Now I know that Cox claims to not Traffic Shape data streams, but what I think is going on here is that Cox needs to look at getting a faster path directly to Netflix in order to support their customer base.  You take this email for what it is worth.  I am not requesting support as I generally do most of that myself anyways.  I am only trying to point someone in the right direction of finding a bottle neck in the system that generally works very well but in my opinion needs some tweaking.  I as a customer want to make sure you as a company know what some of your customers think.