Transmission downloads never go faster than 3-4 MB/s

My torrents never download faster than 3-4 MB/s total. The same torrents go to 20+ MB/s on my laptop on the same network. And I can also download stuff to Vero at that speed by other means (ssh and http).

I’ve also tried qbittorrent and rtorrent with similar results.

Any idea what could be causing this?

It’s hard to say. You could check CPU load. It’s also unclear how your device is connected to the Internet (Wifi or Wired).

htop reports a usage between 50% and 100% (out of 400%). I tried throttling the service and the speed also goes down a bit (but nowhere near linearly).

I’m connected through ethernet.