Also, remember that Torrent is a P2P protocol, which means that you can only download as fast as seeders can upload. If there are few seeders, and if their upload speed is severely capped by their service plan (like most non-commercial home internet service plans are), then it's going to be slow-going.
I've also heard reports of Cox playing internet policeman with respect to Torrent sites (usually it goes under the name of preserving bandwith or some such nonsense).