Nora acting like a child makes sense when you look at it from her perspective. She recently found out she has cool speedster powers and that her dad that she never knew was the Flash, and now she's suddenly in the past fighting beside and learning from her father and being a superhero. She's a kid in a candy store.
Though that being said, the problem was that she acted like a child almost the entire time. There weren't really a lot of moments where it felt like she was an adult.
Also with regards to Nora, I was really disappointed with how they handled Future Iris suppressing Nora's powers. Present Iris was too quick to pat herself on the back for doing it, despite not knowing anything about the situation. Barry supporting her decision was lame too.
Though that being said, the problem was that she acted like a child almost the entire time. There weren't really a lot of moments where it felt like she was an adult.
Also with regards to Nora, I was really disappointed with how they handled Future Iris suppressing Nora's powers. Present Iris was too quick to pat herself on the back for doing it, despite not knowing anything about the situation. Barry supporting her decision was lame too.