he seems like a laggy fish so he could have a hand as bad as K9 or whatever. Folding seems absurd. I probably just call down. Calling his flop raise is probably best too as opposed to 3betting and possibly losing some Kx hands and his total airballs, although I have a feeling we would get plenty of value from KT or whatever by 3betting.

Why does it seem unlikely that he has KQ/KJ?