Not very easily, this is sort of a silly question and all hypothetical nonsense.
There is a reason why we have weight classes and a separation of genders in MMA.
Her judo and grappling skills in WOMENS MMA are amazing and she would handle most guys her size or even 20 pounds larger on her skills alone.
Against guys who train regularly in a FIGHT she might have trouble surviving long enough to get into a clinch. Her striking isn’t that impressive and no woman hits nearly as hard as a man of equal size.
I don’t see her taking leg kicks or knees from a guy 6’4” and 258, a stiff jab would probably drop her.
Again silly question because if she was close to my size I would do my best to talk my way out of it.