What speed do you pay for?
The max you usually get is around 32 Mbps. That rating is comparing you against other users on AT&T, if you subscribe to a slower than average package you can safely ignore this.
The new version doesn't have a star rating. If I add it, I'll make sure give an explanation of how it's calculated and improve the logic. Maybe have it weigh your own average in there or give you a way to input your subscribed speed.