Leonid Kogan is okay but not always strong

I watched Hero: Inspired by the Extraordinary Life & Times of Mr. Ulric Cross (2019) and Leonid Kogan was one of the parts I kept noticing. I wanted more detail, but it still has some useful emotion. Some parts are good, but other parts feel normal and not very fresh. There are good moments, especially when the scene is quiet. I can understand what the actor wants to do, but not every scene is strong. The performance is okay for the movie, but sometimes it feels a little flat. I remember both the good parts and the parts that did not work so well.