You are right in one part, especially charging movements are very quick compared to "normal" movements. But I have no problem with that, this way there actually is a difference between walking (long way movements, not tiring), running (better: jogging, medium-term movements, quite exhausting) and the final impact charge where they really want to smash into the enemy lines with full force produced by a short sprint. No human can keep that velocity for longer than 1-2 minutes maximum as it burns up all your short-term energy (biologically ATP ;) ) and overstresses all your muscles, joints etc.. And that is if you run in sports gear, not in multiple kilograms of armor and weaponry...

If you see the "Running" option more like a "jogging" as I do you'll find EB's choice of speed rather fine, I think