It's probably a stupid question... But if I notice I'm not getting much upload activity on my seeds, I'll often intentionally just hop over to a random country and see what happens. For example last night I noticed that my uploads had been limited to 1 or 2 <100kB/s peers for the last few days while connected to a US server. Clicked over to a Venezuelan server and almost immediately got about 20 connections that have been sitting between 5-10MB/s total upload ever since.

Makes me feel like an international Johnny Appleseed, except with media and stuff. 😎 Though it's a little surprising to me that there would be such a huge difference in seeding effectiveness depending on where your VPN's endpoint is. Whatever works I guess!

The only downside is it can make web browsing and shopping a bit of a pain. But that's my own fault for not taking 10 minutes to figure out how to set up split tunneling or just hosting qBittorrent on my media server...

EDIT: On rumba's advice I enabled port forwarding in my VPN and qBittorrent client, and now all is well.