Video playback performance - nova-video-player/aos-AVP GitHub Wiki

Nova Video Player relies on the hardware acceleration capabilities of the product it runs on. For instance some products do not support HEVC (H.265) hardware decoding and revert to software decoding (based on ffmpeg) that might yield to a choppy video playback.

In any case please make sure that you have not forced software decoding in the settings of Nova Video Player (Settings/Software decoding).