The cannon hotkey is going to be in the post-jam release!
As far as the lag goes, can you tell me about the setup or when you noticed it happening?
I tested with 1 player on US east coast and 1 in Korea and it felt as smooth as playing on LAN.
I do believe WebRTC stops syncing if you switch tabs or unfocus the window.
Also, was player 1 spawning closer to the cookie, or why couldn't player 2 get to it first?
Thank you for the great feedback, it's very valuable for me to learn from!