My current and inadequate understanding of #autism is that it is sort of an "umbrella" term covering Differenz kinds of neurodivergent conditions.
You having divergent (pun intended 😉) experience from theirs would completely underpin that definition.
That said, I'd be curious to find out to which kinds of situations your "quick study" condition applies.
A memory like Sheldon's in #BigBangTheory, perhaps?
"Immediate" holistic understanding of concepts?
(If you don't...