I noticed that when using the oficial MotoGP app on our Android TV, quite a lot of frames are being dropped.
The TV and the wi-fi it uses are fine - Netflix never drops a frame and other streaming services look pretty good too.
Switching from wi-fi to a wired network improves things a bit, but not much.
And it's not as if the bitrate of the MotoGP stream is too high; I see compression artifacts all over the place, more than with any other streaming service.
What does work is to cast the video from a phone. Still not dropped-frame-free, but much better.
Sometimes I wonder what the point of Android TV apps is actually; either they perform worse than simply casting (MotoGP) or they just don't work on our Philips TV (F1 TV)...