My dd is 7, grade 2 and is VSL. And sight reading was early but reading progression was not a straight progression and her comprehension was definitely mixed. But when I think she is just above grade level, she comes home with more complex books because she got bored and read everything at the level she was reading.

I think I was similar. Being VSL, the math is just so easy and farther ahead. Strategy and problem solving is way ahead too. But the reading catches up.