I feel Siniša Dugonjić is not convincing

I give Siniša Dugonjić 3/10 for as Director of Photography in Occupied Cinema (2018). I do not hate it, but it did not pull me into the story. Some emotion is too simple and I cannot believe the character enough. The role need more detail, but the performance stay on the surface. For me it does not feel very real in many scene. This is only my personal view, but the performance change how I enjoy the film.