But in general, the smartest girls will get married off faster than their less intellectually gifted peers.
That can’t be further from the truth! Very often the reason a girl will have a hard time finding her zivug is because her parents want a boy who will be perfect enough for their perfect daughter. That means that the girl is smart, outgoing , pretty etc… I personally know many such girls and they are all smarter/sharper than a lot of their married classmates.