I’m going to add to this post as I go. This issue has been going on for years. Other than ISP throttling which is annoying, it’s really bad design.
I’m on 37MB/s download speed and can’t get a decant connection above 1080P/60FPS
In address bar type chrome://flags – search for “buffer”, look for WebAssembly threads support –> change to disabledViews – 69