There's little you can do to speed things up - it's all down to the tracker.
maybe just check you haven't restricted your upload/download speeds though (there's a setting in there somewhere).
Maybe there just aren't the fast servers on anywhere. It happens.

I tend to get speeds around the 30kbps range (although I can get several hundred from some places). Occasionally I can get just 5 or 6 kbps.
The number of seeds, peers etc will also affect the speed.