How can I improve the quality of the video?

[RustamMuhammadFathulloh]

When I played the video, the quality was very low. How can I change the video quality to 1080p60?

[iBicha]

This package can't play videos higher than 720p with audio. Anything higher will not contain audio. see https://github.com/iBicha/UnityYoutubePlayer/issues/61#issuecomment-877353834