Turrets are relatively performance heavy and on huge servers where you have thousands of them, their idle movement alone can eat up a good chunk of your simulation speed.
This small plugin makes sure that all turrets have their idle movement disabled and keep it disabled.
No configuration needed. Just drop the plugin in your plugin folder and the server will make sure that when a player enables idle movement that it will be disabled again within the next 10 ticks. (maximum 166ms)