If we keep doing Kara, in a year we'll be able to close to being able to keep up with Naga running. The year next, we'll either be just as fast, or faster.
Also, @Astaroh-M Shouldn't our Physical Skill be going up? Not only are we about to hit puberty, but we are STILL carrying weights around ALL the time, AND we are sparing with Kara and her men.