in my game entities are constantly being destroyed, so I won't use the mod afraid it will hurt UPS

it would be cool if you added an option to either:
- only updates on player input
- only updates when player connects/disconnects

question: can I add/remove mid savegame?

• Destroying entities only updates them if they are connected to anything and visualized by the mod.
• Connecting/disconnecting entities only updates when it's done by the player, due to technical limitations.
• Yes, you can add/remove mid savegame. But maybe make a backup just in case. If you wan't to remove the mod it might be necessary to use "hide all networks" button first (or the command if you are in myltiplayer).