[Zizz]

I disagree. Villain hasn't done anything fancy or stupid and plays normal. I take that as he won't minraise flop bets without atleast having a decent hand. KQ, KJ, K10s, 66 are in his range. He could possibly have J10, 10-9 but I don't see them as likely with the player description.
I think I would fold. We could be ahead here but we have to fear future bets from villain that will be too risky to call with our weak king OOP. If you are going to explore other options calling and seeing what he does on the turn is better than pushing IMO.