The Jellyfin LXC has 4 core, and the Arr stack w/ qbittorrent LXC also has 4 cores. The containers are running in bridge mode.

Hey pal super helpful follow up questions! Here is where I am:

• did you run speed tests over protonvpn and is this a paid plan?

Have not run speed tests, but yes it is a paid plan

• have you tested what your Ubuntu download speed is without VPN or gluetun in the way?

Yes I have tried bypassing gluetun with qbittorrent, and no change to the download speed.

• have you looked at the peer and tracker info to see what’s going on there?

No I have not. What info could I gather here? Same file being downloaded in both qbittorrent instances I’ve tried.

• have you tried another torrent client to rule out config issues with qbittorrent?

No but if you read my post, I did try a second instance of qbittorrent that does not use my NAS.

• do you have QoS rules on your router?

None.

• what is the NFS server, and how are you mounting it?

TrueNAS is serving the NFS, and the LXCs are mounting it via fstab entry.

From your title it’s also hard to understand if you’re trying to stream an unfinished torrent or not.

Sorry I was not clear. I am NOT trying to play media that is unfinished downloaded. I am trying to play files I already have, and they are impacted by other files being downloaded on qbittorrent.

edit: formatting

Have you looked at Readarr?