Unfortunately disabling all behaviors on the peer's side didn't help.
Sometimes the ball doesn't reflect from the paddle or goes through the paddle on the peer's side (like at the moment when the paddle is being moved). I do understand why: the trajectory which was calculated on the host is not 100% in sync with paddle position on the peer side.
I also tried disabling this on the peer side: getbit(Peer.inputs,0)=1 > Peer Simulate 8Direction pressing UP. Which mean the paddle is being moved only by position syncing from the host. In this case everything is displayed correctly, but movement happens with delay.