Kasparov took an IQ test and got 135.
(Some websites like to guess the IQ of celebrities, and guessed wrong on Kasparov, and probably everyone else, so just ignore websites like that)
So you're doing fine. Gaining skill in chess is about studying often, and playing in tournaments often where you meet players who can kick your butt. It's not about IQ.
So chess already attracts the smartest people. I just did a Mensa test and paid 7 euros and got an IQ score of 124.(94.5th percentile)
I submitted the test ahead of time.
Don't judge me on my chess.com rating. I don't often play here. My Playchess rating is 1700+ and ICC rating is 1600+.
If I invest proper time would you say I could be a 1900 rated player? since that is my goal. I know 2000 is a bit out of reach.