Yes, slow, like he's just doing it to shake his wattles.
I suspect it has some meaning to them. Like, "Look at me, aren't I handsome?" or "Don't come any closer buddy!" or ? I have a young Rhode Island Red cockerel, around 7 months or so, that does the shuffle dance in his pen every morning when I go out to feed. He is just full of himself, raging male hormones and no females with him. It is kind of funny. Sometimes I'll pick him up and when I set him back down, he acts so insulted and has to shuffle some more. They are funny birds.