depending on ur leachs if its like 50 seed and 100 leach then it will slow down alot! if the ratio is not good then you will have slow speed.
follow these steps that will speed it up a bit faster.
1. right click and set bandwidth location high.
2. depending on ur uploading like if its 30kbs up then put the max at 20kbs
3 make sure that you dont have anything running in the back round like hotmail or a internet game or youtube or some thing that is using the internet