I don't know if this is a similar situation, but when I first started going to therapy many years ago, I also felt that I could "outthink" my therapist if I wasn't in the mood to get too intense.

However, my T explained something to me that really took me by surprise. He explained that I had an enormous disconnect between my intellect and my feelings. He had noticed that I intellectualized every event or relationship I described, but my descriptions of my "feelings" were very clinical and impersonal. I had thought I was pretty darn clever for getting clinical on him, but turns out it was only emphasizing the gap.

Not to mention that outthinking my T was a waste of my own money...

I also have a much-above-average IQ, but I've learned that it means very little when it comes to my OWN therapy. It is important that everyone have the T that is right for them, but rather than focus on someone who has the same level of intellect, it's probably better to find someone who has a higher level of something that you're missing, to help you complete the puzzle.