If you are getting slow speeds, you can easily reroute your seedbox:

Step 1: Go to the reroute link: http://myseedbox.site

Step 2: Select any of the backbones and click on submit

After the page has refreshed click on Run tests:

Based on the results below are the important paramenters you have to look at for optimal speeds:

Run test on all the backbones till you find best speeds.