Chinese mothers are better because they are more stricter than Western parents. Some of them don't even allow their children to take part in CCAs or play comupter games at home. They expect their children to get all As for their subject. The chinese parents concept is nothing is fun until you are good at it.
Opinion:
The children are able to well in academic because their parents are strict with them and they don't allow them to have overnights with their friends or play computer games. They also sent them for violin lessons and expect them to win an award.