I have a character who is a Mary Sue in that she's gorgeous and ridiculously intelligent for her age. Her personality is pretty much that of a child which doesn't really help with the "I'm so cute and innocent" vibe that I've made. I honestly hate Mary Sue-ish characters but I need her to be this way unless I majorly overhaul my whole story. The thing is she is meant to be PERFECT because she's been been "created" (not born and raised to be perfect but actually created) so to speak to be perfect. I figure this would be all well and good but she's the protagonist for the the first third of the book and I need to make people not grow annoyed at her "perfectness" before it is revealed that she's not the run of the mill human being which is not until near the end of the story. Is there anyways I can make her more "real" whilst still communicating to the readers that she is so "unreal"?