1. AVI video codec not supported in Xplayer. All other players supported this codec. AV1 codec video is showing in black. 2. Playback of VP8 and VP9 codec videos are very laggy in Xplayer. But my phone itself play these codec videos smoothly. All other video players can play these codec videos even in HW decoder. 3. There is no improvements while changing to HW decoder to SW decoder. 4. 4K video -webM playback is not smooth, but the 4K videos -webM plays smoothly in system video player.