As a First-Order warrior, his keen senses could, in fact, perceive something else, like a sense of impending danger, somewhat similar to the so-called sixth sense in rumors.
Looking at his opponent, whose aura had somehow become extremely powerful, it seemed more like preparation to launch a truly fierce attack. The dissonant sound of electricity crackling around him, moving and sparking about incessantly, challenged the alertness of everyone present...
Is it... electricity? Apparently, nothing else besides electricity could better explain the scene unfolding.
No matter what he was up to, she'd face him in fight first. The woman noticed her opponent was particularly cautious about her knife-hand strikes since he kept avoid them, while he dared to confront her whip-leg strikes head on. This intensified her suspicion that his physical strength was not as strong as it seemed.
