Hubs are switches from years ago. When 10 computers went to a hub, the bandwidth was divided 10 times. With a switch there was no splitting of the bandwidth. And, it knew where everything was going.
Here's the deal:
1. If the Internet to the modem is fast, then it is a network problem
2. If it is slow, then it is a ISP problem.
We can do the conversions, but if you can do things in Mbps, it's easier to just see.