Thanks for going through the effort to try my game and for the kind review :) The frame rate isn't entirely your hardware's fault; the clouds are poorly optimized, especially when you get close to them. I couldn't find a way to fix this during the jam, but I might update the game to get rid of this issue + add some graphics settings. Also, I can't take credit for creating any of the assets. But what I did was putting the assets together and implementing most of the mechanics in the game.
Cheers!