Eric Roberts has nice moments but also some problems

Eric Roberts as Derek in Insite (2022) made me pay attention more than I expected. The performance is okay for the movie, but sometimes it feels a little flat. I can understand what the actor wants to do, but not every scene is strong. 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. This is only my personal view, but the performance changed how I enjoyed the film.