Christian Mark did not work for me

I watched Hager (2020) and Christian Mark was one of the parts I kept noticing. Many moments pass very fast, and I do not remember much after them. The role needs more detail, but the performance stays on the surface. I do not hate it, but it did not pull me into the story. For me, it does not feel very real in many scenes. Maybe other people will like it more, but this is my feeling.