She actually used those 3 skill except Barriers sparingly like ixa said. Also, even before Leone's torture scene, she was already showed to be a sadist when she reduced a war hero to a bdsm slave. Also, one thing for sure is that if her opponent was like Akame or Tatsumi then it gave her more reason to play around. Also, Ice Spikes was rather a waste to use on 1 or 2 enemies anyway and Tatsumi's current form just fly his ass above it since it was a crowd clearing tech anyway and Ice Meteor against a tiny ass enemies? She could just use it as momentum like in this chapter to reach Esdese anyway. Also, since Tatsumi participate, he can neutralize her time freeze as well.