Yes, I have both an Android TV and a Fire TV Stick 4K, experiencing issues with Ultimate on both.
I'll be trying more (I don't normally watch league games on BT but I'll try).
This is bad! I’ll not proceed with the fire stick then!
it looks like BT can’t work on any streaming device except their own stb
Watching spurs arsenal today and it's absolutely terrible.
I've now purchased a fire stick 4k max and just tried it. Better than chromecast but still juggering.
Really really frustrating!!!!! Please help resolve.
Try going into settings on the Firestick. Select "Display and Audio". Select "Display". Make sure "Match Original Frame Rate" is on. And "Video Resolution" is set to Automatic. See if that helps.