[enen92]

I've installed it onto a FireTV stick and while the screensaver runs, the video playback is slow and stutters

Obviously coming from Apple, the videos are in QuickTime mov format and I'm guessing that's the problem - the FTV likes h.264 mp4. Any way of changing the addon so that when it checks the download folder for the existence of the file it doesn't pay attention to the file extension? That way I could transcode the downloaded videos and replace the .mov files with .mp4.

Actually I see this on Pi as well. If I play the mov files directly they are as smooth as butter, but there's a difference when playing as a screensaver.

The problem is whenever you trigger the playback of a video you are doing an "active" action and that triggers the screensaver onDeactivate method, that's why it stutters for a few seconds on the first video. To overcome this what I am doing is something similar to what the video screensaver addon does. Basically I do an action through the json rpc api (Input) and wait for the deactivate method. After that I just start the video playback.
What might be happening is that on the pi the waiting time is not enough to have the screensaver deactivated and the playback starting, so the deactivate method happens during the playback. If possible, check if this value makes any improvements:

https://github.com/enen92/screensaver.at...tv.py#L103