Question:  How does the narration style influence how reader’s see both the narrator and how the story is interpreted?

Throughout The Hour of the Star, the narrator is a central character that invokes strong emotions through the style of narration. Within the telling of the story, the narrator both reveals details about himself as well as others. I found it interesting how the narrator uses words to sort of paint pictures of the story. One example is on page 26 when the narrator discusses aspects moving in slow motion, so he elongates his words. How does this imagery help the reader to visualize the scene? In my opinion, these various techniques help to create real emotions in the reader, such as frustration in my case.