[pip08456]

According to Torrent Freak

"Virgin Media’s CEO Neil Berkett told The Register that the company will start limiting BitTorrent traffic for all its customers. To some this might not really come as a surprise, as earlier this year Berkett said “This net neutrality thing is a load of *******s.” Virgin’s BitTorrent throttling plans seem to back up this earlier statement. Which throttling methods Virgin will use has not been announced, but Berkett said that they will be implemented mid 2009."

Don't know if this has been implemented or not.

There are also other variables which affect bit torrent. How many seeds/peers?
Are they limiting their upload speeed?
Is your client set up correctly?

etc etc