Google "stealth dyslexia" and see if it describes what you're seeing.

I wouldn't spend money on an auditory processing evaluation just yet. I think if you're going to get an evaluation, someone who specializes in 2E kids and who has a particular interest in dyslexia would be helpful.

Our son had an auditory processing evaluation and all it did was tell me what I already knew: he has auditory processing deficits.