User blog comment:ImperiexSeed/Caitlin's statement in 2x17 "Flash Back"/@comment-3423279-20161014220058/@comment-3423279-20161015000745

Maybe you should to those Q&A panels, get some answers as it seems to really be bothering you.

Sure, she can be correct that their legs move at the same speed. But the fact that Zoom and Reverse Flash were so insanely fast compared to Flash means something else is going on.

Whatever that other thing is most likely affects literally everything related to momentum.