Check out this thread for tips on configuring LW.
Configuring LW for best performance

Download a file from here & see what kind of speeds you get.
+ MagnetMix.com +: The Source for Good Content

Shaw are known for throttling p2p, it might not apply in your case but here's some info anyway
http://www.gnutellaforums.com/connec...-limewire.html