Thanks for playing.
Appreciate the feedback.
Interesting that you had performance problems.
Are you using Chrome? It's the only browser that plays nice with WebGL in my experience. Also, do you mind telling me what GPU and resolution you're using. I'm using a GTX 650 Ti from 2012 and I can't get the framerate to drop, even at 1440p in full screen.
As for the lily pad, it might be the framerate that's causing it. Was the game stuttering? It should compile most shaders at the start, but maybe it doesn't on some hardware.