Yorkie Girl,

It is my understanding (and anyone please feel free to correct me) that it is the working memory score which is more tied to ADHD issues than processing speed although they often get lumped together. We are working out some similar issues here and I don't have any better advice than those above - exercise etc. Try swimming - mainly free swim. It works the whole body, is a great sensory experience and is totally open-ended.
Keep posting and welcome!

Breakaway