Sorry but I have to disagree. IMO, the fastest moving sport is motorsport, with the subjects moving at 100+ MPH - OK, that movement tends to be in one dimension but it's still subject movement. Maybe IS can't kick in quickly but I have no such problems with my VR! (Neither did I with the OS lens I used to have.) Speed and accuracy of focus with or without VR has never been an issue or made me miss a shot - it tends to be me looking the wrong way that takes care of that!
Keeping shutter speed up is no problem for me, either - I can ramp the ISO up to 1600 with no worries about IQ and even at 3200, images are useable. If it's so cold, wet, dark and miserable that shutter speeds do become a problem, chances are that I'm in the car getting warm, dry and happier.