Do you see her cuffed to Pucci right now? She had the advantage before because there was nowhere else for Pucci to go. Of course Jolyne would have had the upper hand then. It doesn’t matter if she knew how to fight or not - her stand outclasses Whitesnake in strength, and each of them had at least one of their arms subdued. Not to mention, she was using her strings along with the cuffs, if I remember correctly.