I have Comcast also. It seems the downloads are somewhat slower than they were when I first started using torrents, not real bad, but I can still download. Uploading on the other hand is almost impossible. While you are doanloading, the uploads are okay, but when it finishes downloading and turns to seeding, suddenly the uploads stop cold. I show several people in the swarm but I'm not connected to anybody. Uploads stop completely once I finish downloading the file. Every time!
Anyway, downloading is okay but uploading is terrible with Comcast. Maybe you're slow because of Comcast, but it may be there are only a few seeders and that particular torrent will just take a while.
Comcast :thumbsdown: