I mean no, Jackson is a fast as fuck human being, but career average ypc for both of them is 5.83 (which is kinda cool.) Allen fucking destroyed last year with his carries and clearly has been told to hold them back this year since he runs like Cam but even more dangerously. Whereas Jackson can run like an actual rb and not take big hits, but their red zone threat I'd say is pretty close since bills clearly are willing to run the trick plays with Allen and let him run.
So no nobody is going to say Allen is equal to what Lamar can provide running wisee overall to the game, but when the game comes down to it Allen can defeinitely do Newton-like shit with his body.