Yes go faster when superreading so you don't subvocalise then.
When dipping its usually only a phrase or two or sentence or 2 or at the most a paragraph then just subvocalise and be done with it. You're looking for answers focus on that and not whether you're reading fast enough.
The clearer the question the less you'll need to subvocalise because you know and understand the answer when you see it.
Alex
