I live in a major city in Florida, yet my only choice is Comcast, with $53/month for 25mbps down/5mbps up, but when I tested the speed, it was more like 2.3mbps

I live in a major city in Florida, yet my only choice is Comcast, with $53/month for 25mbps down/5mbps up, but when I tested the speed, it was more like 2.3mbps up! I can pay for higher speed package like Xfinity Blast for $80-$100/month, but I still get meager 10mbps.