Those look like comfortably MG scores to me with the two outliers being the 8 and the 18. Two scores that fall outside the range of typical aren't major cause for concern, though. Speed doesn't appear to have impacted him on block design terribly either although I would leave room for the assumption that the block design test is a bit of a low ball for him.
I'd venture to guess, based on the PSI subtests, that visual scanning isn't so much of a problem for him as is the physical act of writing. If a 2e issue is at play, I'd be more inclined to investigate dysgraphia than visual problems.
