Tween speed is another easy effect. First off create your tween like
before. Then right click on the space in between the keyframes in the
motion tween, and select properties. Once the frame properties box comes
up select the Tweening tab, then move the Easing bar
in or out to speed up/down the animation. You can also add
keyframes as needed to change the speed more or less as needed just like the
color section.