You literally transmute matter at will, you do not need to fight Killcannon just turn his robot arm into cheese or something. Your nemesis is a villain that you do not need to consider the whole cannot effect living tissue thing for even a second. That is all.
She was fully in her ego, but even then she’s just shown to not really use matter manipulation to a significant degree which could be a speed limit of it. Nonetheless she was fucking around bc she couldn’t keep herself in check