1) Change the port of your torrent client (Some ISP reduce the transfer rate of popular P2P ports). You can give a try by changing them.
Be sure those ports are open into your box.
If still no change,
2) In your torrent client, select the option to encrypt the connection. (deluge torrent has, utorrent should also)
and see if there is any improvment.
If yes, well it means your ISP is shapping the P2P protocol. (Could it be Deep Packet Inspection....?
)If no...your problem is somewhere else...









