She is currently listed as a candidate for deletion for “being too serious” however there is no further elaboration, while she was a bad person originally she becomes more genuine and willing to help with her even becomeing more optimistic at the end, going through severe character development.
She also has multiple comedic moments that prevent her from being unpleasant such as punching shockwave in the eye for being a jerk and questioning why bumblebee cut the door with awkward silence, she doesn’t come off as overly serious and isn’t written to be such