As impressive as the move might look in movies, dropping for a sweep-kick was too obvious to be used against anyone who actually could fight. No one ever dropped like that in a fight and then didn't sweep-kick. As such it was easy to avoid, a quick step back whilst the opponent went low was more than adequate.
"You are special. You may be human but you're also the Slayer and have abilities that I do not. I cannot match your speed if I am trying to attack you and with your strength I doubt you would need many hits to take me down if I allowed you past my guard like that. Therefore, I conserve my own strength and energy until yours has depleted" Lucius rolled his eyes at her. As always she looked but did not observe, she was a hurricane and as such was chaotic until she effectively wiped herself with that same chaos.