Yeah. It's a laser timed 40 from 3-4 years ago. Crazy that somebody would want to use that.
So obviously a players 40 time should improve from there being in a college strength system, getting stronger, getting older, etc. By and large, it will improve by a tenth, rare occasions two tenths. Very rarely more than that. Look it up, it's a great resource.
Taking those numbers, seeing that Sutton is 3-4 years older than he was, and has gained ~30 pounds, I would be SHOCKED if he increased his speed by 3 tenths of a second and ran a 4.4. So that, and the tape where we can see he struggles to gain separation on college CB's, makes it pretty clear that Sutton isn't a burner. He's a big bodied possession WR.