Hmm? I know I'm no-one to tell you those things and it might sound odd coming from a stranger, but... please try persuading her to attend to the kid's special needs somehow. Ideally, I believe, he should be learning what he loves plus things useful in any career like logic and social skills, with moderate challenge and in the company of like-minded peers... but really, any improvement over either the boredom of standard "education" or the strain of a Japanese-style cram school would be fine. It pains me to see smart children burning out, because it happened to me too.