I don’t think that the argument has to be made that Yeshiva students score higher than their counterparts.
As we know, the boys are doing the same work in pnly 2-3 hours in the afternoons.
As long as they are doing well and holding their own, that should be enough.
True, if they spent many more hours and had nothing else to concentrate on, they would probably score a lot higher (as they do have the ability).
But if they are doing well and can do well in college if they choose to go, why do we have a need to prove that they are scoring better than their counterparts?