As always, the attractive features of your improvisation for me are your romantic lyricism and associated harmonic changes. These are largely unaffected by how many notes you play, which is after all just one creative option among many. The reasons for playing a lot of notes vary among players but demonstration of finger dexterity is surely one of the least musical, and you never do that. I do not find this one particularly hyperactive but perhaps that says more about my playing than yours. Hyperactivity seems to me only a problem when physical energy is used as a substitute for musical idea or impulse and your lyricism effectively protects you from that trap.