Hi-
My DD9 had a similar profile with IQ, grade level stuff, etc. She was tested at age 7, second grade. She had a lower processing speed as well, about 80th %ile compared to 98%ile+ in everything else. This explained her frustration with timed tests.

Her handwriting was horrendous and she hated to write. Our pscyh explained that DD's thoughts were racing, particularly when she was asked to do a writing assignment. Her hand, while developmentally normal, simply couldn't keep up with her brain. He suggested that by age 9-10, her handwriting would improve naturally, simply due to physical development. We have seen a HUGE improvement in handwriting within the last six months.

So, some of it could be that butter's hands just need to catch up to her brain smile
I know that was the case with our DD.

Good luck!