Bad video performance

[drwankingstein]

Video performance with MPV is quite poor. It seems to default to hwdec=mediacodec-copy Setting hwdec=mediacodec made it perform better, however looping seemed to have broken.

On low end devices, setting profile=fast also can help. I have also had the app stop responding and need to be closed and re-opened.

Also is it possible to provide builds with impeller enabled and disabled respectively? It might also help performance some, but some devices have bad vulkan drivers and they might be negatively effected.