Mm... Amalthea was kind of like that too- she'd run off ahead and then trip over things all the time. Gave me so many heart attacks. But she grew out of it- jealousy over Prim and Lumi outclassing her, initially. And then... just wanting to step up for her own sake.

He's probably always gonna be energetic as all hell, but. Who knows? Maybe he'll mature in time.