Having same problems with torrents

Tried downloading my first torrent since I switch to flow and was barely getting 20 kb/s download with a very healthy torrent (5700 seeds and 1500 peers)
Plugged in my blink modem that is still connected to see if the problem was on flow's side and download started to fly at 500 kb/s instantly.
Called flow and they said to plug in the LAN cable directly to my PC and re-install utorrent but I'm still getting pathetic speeds ~120 kb/s max
I regret switching to flow honestly
After doing a search I saw that they don't have any firewalls or anything like how blink sometimes has that prevents utorrents from connecting, so any ideas?