Welcome! That is a very high VCI. I would be curious to know if extended norms might be relevant here, and I would also ask about having a GAI calculated. As for the lower processing speed, my daughter has a similar discrepancy.

You mention he is very happy at school. What are you seeing that makes you think his current school isn't an appropriate fit?

By the way, his VCI qualifies for DYS. You could apply with qualifying achievement scores or a portfolio.