I do not know if it makes much difference, but I have noticed something else. I have been running a continuous ICMP ping to 8.8.8.8 in shell terminal, and when I have bad problems with the game accepting and processing my clicks, I also notice no ping reply in the terminal. Could it be that the game tried to send an update to the server and is awaiting a reply, but the packet(s) to or from the server had been dropped/lost, so the game gets stuck in a loop waiting for something that will never come?