She sounds like my son! Academically several grades ahead, but with special needs around speech and other motor issues. The phrases to google (and please do so! you'll find a wonderful community of other parents) are "twice exceptional" and "twice gifted."
What I really, really recommend, right off the bat, is that 1. You get her tested for giftedness, and 2. You meet with whoever is in charge of both gifted and special needs education (often but not always it's the same person) and bring them all the records you can.
Ideally, she could qualify for placement in a gifted classroom (or at least get supplementary academic materials) and also get speech therapy and other OT (if needed) through the special ed. program.
There are some school administrators who are fantastic in this area, and some who are honestly terrible. My son's only in first grade, but I've heard the whole gamut of stories from friends whose kids also fit this profile.
My own experience has been: My son was perfectly happy in kindergarten, but the only areas where he really learned anything were handwriting (where he struggles) and all sorts of things during this one wonderful unit the teacher did during Black History Month. I think he just assumed that you weren't actually supposed to LEARN reading and math in school.
This year (1st grade), the math curriculum has sort of caught up with him, and he's started to LOVE math. The reading is still several grade levels behind his age, even though he's in a reading group of one, but it's not really a problem for him. He just reads constantly at home and lets the school stuff sort of wash over him.
Some parents are concerned that their kids will be bored in kindergarten, but we never had that. My son doesn't know school is supposed to be any different. He knows he's expected to behave well in the classroom, and he holds himself to high standards on that.
We're also very lucky in that my son hasn't been teased at all for his speech or for his physical limitations in areas like gym. I HAVE sat down with both teachers and expressed concerns that he'd be a likely target for teasing, which may have helped, but I think he just goes to a really sweet school.
So, sorry, that was sort of disorganized. I've had so many relevant experiences on this one, it's hard to describe them in order without writing a novel, dissertation, etc. But feel free to PM me with any questions. And be proud of your wonderful little girl. (I know you already are.) Twice exceptional is twice as wonderful!