I created a server with hamachi and invited my friends to join, but it's so laggy and the clearlagg plugin can only be used by bukkit/spigot servers. My friends complained about serious lag like minecraft not responding and stuff like that. I checked the ping and it was on 1ms, i was shocked. So i need help with how to ruduce lag on a hamachi server.
Unfortunately, if you're running Hamachi and minecraft on a slower computer, it will go sloooow. Hamachi itself is slow, which is why I prefer not to use it. I too have had this problem. What I did was ran hamachi on a separate computer, and played minecraft on the other. The other option is you only run one at a time on your computer. You could also try adding more ram to your server, but I wouldn't recommend it if your computer is slow.