Marvel and comic book movies are a unique case. Their whole purpose for existing is to make money, so they follow a successful formula for the highest profit. It leaves little room for an actors own style or personal touch, or even talent. The appeal is the special effects not the acting. All the marvel actors will tell you that. Here's an example. Here's another.

In the case of Angela Bassett in that movie, her character was stonefaced almost the entire time. She stood around in a costume in front of a green screen.