Some people and personality types equate intelligence with being able to rattle off facts, provide quick solutions to problems, etc. Deep thinkers can be underestimated and misunderstood. It can be frustrating.
An INTJ friend and I used to play board games together a lot (until he moved away). We were always very methodical with the decisions we made. I went to visit him last year, and we attended a game night during my stay. We were playing a board game when someone expressed that they couldn't believe he wasn't able to take his turn faster. From the look on the protester's face, I immediately knew he considered my friend stupid or inferior. However, my friend to this day is easily one of the most intelligent people I know (even empirically tested via a Mensa-qualifying test).
I'm not the smartest person around, but I like to spend my time around people who realize that my taciturn nature isn't because I'm "slow", but rather because I'm contemplative. I hope you're able to find enough of these kinds of people. If not, I'm one of them, and I don't always have to talk about Hitler (though I prefer to).