the mouse movement to platform movement was not a 1:1 translation. I guess you are checking if the mouse is moving down and then move the platform down at a constant speed. Could be wrong.
Viewing post in Only Juan in Space jam comments
yeah, it wasn't 1:1, there's a top speed so that giving momentum to the astronaut is easier (otherwise it'd be too easy to throw him too fast), we're using unity's mouse X and mouse Y iirc. we wouldve liked to refine the surfboard movement much more, and maybe include a sensitivity slider, but we didn't have enough time... thanks for your feedback!