Just press the green flag and mess around with the SPEED slider.
Credit to myself :D My first shared project from the beginning of Scratch 3.0! At first, Scratch 3.0 was a little confusing to me with the new look and everything, but now I have it under control! @Caleb_Marshall P.S. Also, I know when you go faster, the bar is a little off, but does it really matter?