6'5" 240 and runs 4.5s. That is pretty fast for a guy that size. I would call that freakishly fast. Moss was quite a bit faster. But, he wasn't that big either.
He ran a 4.61 at the combine. So no.
We can also add to this that he had a poor vertical, and jumped less than 10', which is frankly embarrassing for a guy his height. He bobbles catches when he doesn't catch with his body either. None of these things are like Randy Moss, in fact they'd be the opposite of Randy Moss. Let's give up on this comparison.