I get the impression that Shrinidhi is off the charts. You don't really see much of her family beyong her mum looking on with an expression of, what, miscomprehension? She isn't grinning like a cheshire cat, air punching or seen drilling her to within an inch of her life. The kid seems to pop off the the library to choose her books and happily gets on with it. She seems to have a vast memory and adores words.
Her parents may have moved here for a better education for her, but I have known people from India, Pakistan, Singapore, Malaysia, Iran all do the same thing, as there was a time when the english education system was thought of as a world beater. I'm not sure if her family are academics or steetcleaners.
DS has started beating us at all board and card games. He is 8 and I put it down to my advanced age/onset of senility. This is tiring enough, without having a little genius on our hands!