aloyouis
at least generally aware
With all of that I would GUESS you need a pretty wide pipe. 500 or faster. We get 1.1 here and everything runs on it with no issues. At any one time there are at least 10 devices connected (TV's, computers, phones, home automation etc.). The only time I get the symptoms you are getting is when the server on the other end is swamped. Usually I can find a different stream and that cures the issue.No clue lol. We usually have three TVs going and the ones showing Red Zone & the local game work fine. It’s always the Ticket that freezes or slows down.
Long winded answer. Sorry. Boils down to this: Check you speed.