private match

I sit and watch how people sit in a private match and swing like in a quick game. This is cheating. Reduce the points in a private match by 70%. Why should I swing the level in a quick game, and a group of friends in a private match can swing. They raise the level in a couple of hours, and I need a week for this. This is a big flaw. Imagine a group of friends who play in a private match and get faster.