I respectfully disagree. 190 is a 'slow tempo' for me with the ankle motion, and so far I'm actually seeing results. Any slower than that (give or take a few BPM), and it just doesn't work for me.Don't worry about the sound at a slow tempo; worry about the motion. If the motion isn't controlled at a slow tempo, it's not going to be controlled at a fast tempo either. At least give it a try.