Is it supposed to feel like I'm playing a NES game with the frame limiter off? I move half way across the screen with just a quick, single tap of left or right.
That's really odd. It's not supposed to do that. I have no idea what's going on; it works fine on all of the devices I tested it on. My only suggestion is to try restarting your browser (but you've probably already tried that). What operating system and browser are you using?