Internet speed is more complicated than that. If you are in a data centre then your connection will be limited by the port speed of the box you are working on. This will likely be 100Mbs or 1Gbs. You may have networking kit connecting at 10Gbps. What really matters at that level and is much more interesting is the quality of your transit and peering agreements. This is hugely important for countries without large internet exchange points.
I'm surprised any CDN can (or is willing to) feed a single client that fast.