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.