Count yourself blessed! He'll probably evolve into a lion at some point.
Hmm....believe me, there have been times when I wished he would evolve into something calmer, and QUICKLY. We both barely survived his kittenhood. It got to the point where I was putting him in a crate at night because he was getting into trouble and making ENORMOUS amounts of noise (for such a little guy, especially!)
He's a lot better now - having Halvah around (when she was a kitten) helped a lot as they would play while I was gone at work and he would actually SLEEP occasionally. And now he has Fiona.