I know there is a auto target option, when enabled, you can't control exactly who to you want to hit if there are too many monsters at the screen at once. The Auto Target option, not enabled, your character will slash right through the enemy.
So I say there should be a Aim Assist option as well.
You know thoughs console FPS games? They don't have auto aim, but they have a aim assist option so the crosshair can slowly aim towards the enemy you want to kill. But it isn't that noticeable that you can't control it.
It would make combat much fluent.