Talk:Kai'Sa/@comment-32727044-20200202024635/@comment-3974211-20200202213846

Let's say you have 0.625 attack speed.

You can attack once every 1.6 seconds.

The windup percentage is how much of that 1.6 seconds that you are forced to stand still.

Normally, Kai'Sa has to stand still for nearly 0.26 seconds. During Super Charge, she only has to stand still for a hypothetical 0.1 seconds (I say hypothetical because Super Charge also increases her attack speed, so it would be 6% of the new attack speed value).

Essentially, she can move more between attacks.