Running is essentially repetition of motor movement the human body is wired for. Like any other skill, we smooth out this genetic potential and get faster through repetition.
The disconcerting/empowering thing depending on how we look at it is, it took me a year and a half consistently running before I felt light on my feet! Dude, that’s a crapload of hours and reps for something the body is supposedly bio-engineered for!
Not ‘fast’ yet by any means, but what running taught me is that there’s no end to how smooth and efficient you can make a single position in Jiu-Jitsu through repetition geared training (this includes but not limited to warm-up, daily routine, or specified drilling that takes of the entirety of a training session).
The natural question that follows is, are we working on perfecting positions or settling for serviceable?