> "Johnny gets all of his work done quickly and it's stellar work, but then he is a frequent distraction to those around him." Yep, a variant on bright/"gifted

> "Johnny gets all of his work done quickly and it's stellar work, but then he is a frequent distraction to those around him." Yep, a variant on bright/"gifted" + ADHD presentation. ADHD as fuck, but smart enough that they get by kinda OK-ish regardless, and maybe even excel... until, perhaps, one day, that's not enough anymore and everything falls apart. The intelligence masks the ADHD enough that it might go undiagnosed and untreated for a long time. Fortunately, spotting these kinds of "twice exceptional" situations is a big focus in modern gifted education, so that's getting a bit better.