I empathize with your dilemma, as we are experiencing a similar situation. We moved to a gifted school for the social emotional component that our DD desperately needed to survive. Wasn't worried about academics at all, but now that the her social emotional needs are being met I am worried she is not reaching her full potential academically.

We decided to do enrichment on our own to fill in the gaps. It is to some extent part time homeschooling. We use a tutor for math, so she can go at her own rate and participate in homeschooling programs for science and other areas she has an interest. Some of these take place during the regular school day and we simple take her out of class. It has worked well so far. DD is happy she is getting to explore her interests more in-depth and happy to have her social emotional needs met at her school.

I wish we could find a school that meets all our needs, but it just doesn't exist in our area.

Good luck to you.