NFL Scouting Combine: Feb 27–Mar 2

That's not a huge difference and you are comparing Jeanty to a RB that ran a 4.66 forty at the Combine and was not known for his speed.
Ingram ran 4.62 at the combine and 4.53 at his pro day. Jeanty running about a half mph faster than that is a significant difference. For reference, Bijan Robinson has never gone faster than 21.6 MPH in his college or pro career. Robinson ran 4.46 at the combine and has a slower top speed than Jeanty.
Jeanty is a great back,
Agreed Jeanty is a great RB.
but he's not likely to be a home run hitter in the NFL. Which is fine since RBs seldom get to use that speed or hit those home runs no matter how good they are. The exceptions are guys like Saquon and it why although I think Jeanty is very good, I don't think he's in the class of Saquon.
Very doubtful that Jeanty isn’t a “home run” hitter in the NFL. His quickness, contact balance, burst, vision, and top end speed combo is likely to get him into the second level often and allow him chances to gash teams for big gains/touchdowns.
So, sure, he's likely in the range of a Mark Ingram type. Probably better than Ingram but he's not Saquon or Barry Sanders.
He’s obviously not Barry Sanders. Literally no RB in NFL history is. By that logic never draft a player high unless they are as good as Tom Brady, Barry Sanders, Jerry Rice, etc at their respective position lol. As a prospect he’s right up there with Saquon Barkley. Time will tell if he will be as good as Barkley or not.
And the fact that he's only 5'8" and 203 Lbs. does mean that for him to be successful as the type of runner Ingram was, he is going to have to be an outlier. It think he is that outlier, but it is an issue.
He’s 211lbs…