Thank you for the insight into correlation of the subtest scores. That helps a great deal since this is all new to me.
DS performs well in school, but his teacher noted that he could "take more initiative," and we have also found that he doesn't seem motivated to perform quickly or with perfection on most tasks. He certainly isn't lazy - quite the opposite - he loves to ride his bike, walk in the woods, build/play with legos and playdoh, and he enjoys pretend play, among other things.
He learned how to tie his shoes at the beginning of this school year, and I do feel like it takes him longer than it should to tie them. He spends more time on his homework than I think he should need, and on a recent timed math paper, it took him 8 minutes to complete 56 addition problems, which again, is longer than I would expect. He doesn't enjoy writing, although his handwriting has improved this year, no doubt due to his his teacher being a stickler for neat handwriting. He has never enjoyed coloring, and still doesn't color neatly.
He has difficulty focusing; i.e. during martial arts class and when doing his homework. He was banned from sitting on the floor during circle time this year because he couldn't keep his hands to himself. His teacher says things have been better since she moved him to a chair.
He hasn't had an eye exam, other than the school vision test and reading an eye chart at the pediatrician's office. He doesn't seem to struggle with his vision, but are there other issues an eye doctor can check for?