Thanks for the review!.. Yes, it may have a bit of slowdown with the shadow system it uses. I do have the 'q' hotkey (or the upper left button on cellphone) to switch between quality settings, I believe this version should have one that turns shadows off completely. I was considering checking the FPS internally to lower the automatically if needed, but I thought that was a little much.
As you gain height (or are on shaky platforms) your anxiety increases, which makes the mood meter go faster - but it's all very much variables I can tweak as well, if that is the problem - but yeah, right now that is a limitation on how fast it moves as well - that it needs to be able to get faster and still be playable.