I'm not sure how the frame rate would change that. It will still appear. It's like saying you should never be able to notice motion blur, but in every case I certainly can. Some games just over do it and DMC4 on the PS3 certainly seems like its WAY over doing it in all the cases I've seen. The best I can equate it to in my past experience is Crysis when you jack the motion blur all the way up, it makes the game unplayable because its almost nauseating.