Taysom Hill ran the ball 47% of his plays (with the other 53% passes). When he ran it, he went for 5.3 yards per carry on average. 
14.8 carries per game, 16.9 passes per game

Jake Retzlaff ran the ball 29% of his plays (with the other 71% passes). When he ran it, he went for 2.3 yards per carry on average.
12.7 carries per game, 31.2 passes per game

Retzlaff ran more than Slovis...but that's really like saying Zach Wilson is basically Lamar Jackson because he ran more than Peyton Manning or Tom Brady ever did.  There's a spectrum of running QBs and Retzlaff being on it doesn't make him the same as Taysom