Video freezes and I lose the workout

Nearly every time I workout, the video freezes for about 2 minutes... multiple times. Not only does this end up lengthening my workout by 10 minutes or more in the end, but sometimes it never recovers and I TOTALLY lose the workout b/c it ends prematurely. Then I start another workout only to have the same issue.

I do not have this problem with the Peloton app so it’s not my internet connection. I was considering a yearly membership to Apple Fitness but not if this is how it’s going to be.

Also, when I cast to Apple TV, the screen is black with only sound. Very frustrating because I don’t want to do the app on a small phone.