Welcome! I'm not an INFJ but I just wanted to tell you something that a close friend of mine tells me anytime I have problems relating to guys I go out on dates with. If these girls you're talking to are unable to hold their own in a conversation that "requires too much thinking" then clearly they aren't right for you. I'd assume you're searching for someone who you can connect with on a deeper level, one that goes further than appearances, so why waste your time dwelling on those who have no interest in doing the same?
Anyhoo, glad you joined, Vanish! :happy: