Yes, turn slower. I personally use a mouse to move. So, I would quickly turn and then hit my spell, which turned me back with the auto-facing. Now, if I was on a controller, I would just strife left or right. There are times you still need to turn, like when you have to face away from the purple eye. With a mouse, you can do that much quicker and therefore have a little bit more time to let the spell finish.

But at this point, we are talking about a fraction of a second and is you have to be pinching for what would be about 2 to 3 extra second of activity out of the whole fight, then there are other problems than hardware.