I mean, speed on QBs doesn't seem to matter in Madden 23. As soon as they leave the pocket, pass rushers disengage and run down the QB even if the QB is faster than the defender..
Without escape.artist you really can't use a mobile QB unless you throw from the pocket more often than not.
I think with Vick if you can use a lefty , the 92 THP is more dangerous for defenses than the 90 speed. But I'd probably still opt for a quick release and accuracy