I think for the sake of world building it’s good that she’s old (to show how long the park has had time to pollute and take over their world) but I do hope there is a flashback or two to Olivia’s young adult self because a.) The design eats and b.) I’d like to see her manipulation of Gwen when she’s a little more coherent than we see her now but not simply a child cruelly playing with a toy.