How to make the controls slower on Dolphin?

[Squidconqueror]

While I was playing Zelda Wind Waker I got to the room where I had to fight 3 skeletons and get the mirror shield, the problem is that I couldn't get the light beam to stay on the moon in order to unlock the door and advance because the light beam keeps moving too far up and I couldn't get the controls aim right at the moon so i'm stuck in that room. I'm playing on a keyboard.