Kate Fleetwood has nice moments but also some problems

I watched Diana: A Definitive Portrait of a Princess (2021) and Kate Fleetwood was one of the parts I kept noticing. I can understand what the actor wants to do, but not every scene is strong. There are good moments, especially when the scene is quiet. The performance is okay for the movie, but sometimes it feels a little flat. I wanted more detail, but it still has some useful emotion. Some parts are good, but other parts feel normal and not very fresh. Maybe other people will like it more, but this is my feeling.