75ms to US not unreasonable, and have seen Be users with pings to our servers in london with an average of around the 7ms mark, i.e. a lot lower than most ISP's
But only if they live within a specified distance, it's down to their points of presence PoP, & distance to that, nothing more,
Unfortunately for those who live north of the M25 we will never see sub 10ms to the same location, as they don't have PoP s in many other places , so is are a bit behind ,as other networks do have POP s up and down the uk