Don Giovanni

I have Fiber Optic Cable, 5MB Dwnld/1MB Upld which is the standard internet service of most people, my friend (who lives about 400miles away from me) has 10MB Dwnld/5MB Upld and no matter who is host or time of day, the second person can barely play for the lag is unbearable. This is happening to others around the US, so it's not me or my friend, and it's certainly not my McDonald's WIFI connection. Anyone?