Currently, just jogging away from an infected, is easy enough to just evade them, and not be hit by them.

They can't really be a threat if they go slower than your jogging speed. I can just jog away from them, and they will strike, but they have to stop to strike, which leads them to not being able to hit me, and slowing down.

Maybe the infected should strike while moving, and then pause after they finish their attack, and then once again chase you.

You should however outrun them by sprinting, not by jogging. (Please tweak this, as Infected need to be more of a threat :), keep up the good work)