She was operating Fatman's systems to pigtail the imperial ships, not trying to blitz Zeerid. It's also stated the focus of her power was her perception not her speed.
She dwelled in the Force, floated in and on the warm network of lines that connected all things, one to another. Her consciousness expanded to see and feel everything near her. She focused on her perception of the passage of time, first on how it felt as she moved through it, then on spreading it, stretching it, until she could linger in a millisecond as if it were a moment, then a minute.-Deceived