Yea I would test a large file and as soon as it buffers put a limit on quittorrent or something that could be reading and writing lots of data from those drives and see if that fixes the issue. I wish there was a better way.

Its a qbittorrent setting. you can set upload and download limits to turn on at specific times or when you want to by clicking the little speed dial.

So if you are not utilizing those harddrives for other uses such as torrents thn disregard.

I believe I have a very similar issue as you. It only occurs on remux/high bitrate 4k videos. Happens no matter the player etc. I currently fix this issue by putting on that limit qbit upload speed and everything plays fine then.

I am interested in what your solution is.

just found out there is an “Experimental” setting for it to “Try to embed the lyrics to the track files when possible” setting have not tried it myself

I use Plex (Plexamp) and I can not complain. I don’t really access via the web browser however, I use the app for dedicated music playback.