A blown first grade presentation isn't a deal breaker. I'd suggest that her speech needs to be short, so she should focus on just a few slides for the class. Remind her that her teacher will see the longer presentation and the written work. I would email the teacher with a head up, too.
I remember my D2 writing a book for class that they were going to have published, and having terrible time management. Her book was far longer and more complex than anyone else's, but she also exhausted her teacher. They had a deadline to meet so the books could be bound. It caused a pretty big rift between her and the teacher near the end of what had been a good year. Just because our kids are smart doesn't mean they have any sense of time management...