Thank you for the support!
Are you sure that the game code is the same as your friend's game code?
They need to be the same in order to join each others games.
If you are still facing this problem, then that means that you are probably switching between pages to play, and don't have each tab open on a different screen at the same time. This is because when you open the second player's tab, the host no longer updates the client and that's why it lags.
If you are still having this problem please message me!
Thanks! That really means a lot to me! I am working on plenty more games! :)
Member since 11 Nov, 2016