Styles make fights. If you charge at Holly, she puts you in a blender of left straights and left body and high kicks.
If you plant your feet and don't charge her, she tries to pitter patter you to a decision.
Tonight Holly pitter-pattered the wrong woman and ate check hook after check hook for it.
She is like the opposite of Cro Cop. They are both southpaw kickboxers, but Mirko is in his element when he's stalking you down like a tank, making you back up, cutting off the cage so he can land his LHK and control distance. Pressure him and he starts to fold because he can't get the distance to throw kicks.
Holly is completely uncomfortable pressuring and doesn't know what to do when her opponent barely moves forward and times her. She's in her element when you're charging her so she can use lateral movement like a matador, pepper you, and retreat. She relies on you to close the distance for her. This is why she worked Ronda so cleanly. Ronda charges like a bull and Holly fights like a matador. Clearly it's evident that Holly has huge problems closing distance.
It has nothing to do with her "getting old."