In minecraft 1.9, players can change the update rate of a world. This idea is to allow players to set the tickrate of their resses, anywhere between 0 and 20 tps (default). This would allow players to slow or stop certain processes for aesthetic purposes, such as wheat growth. Perhaps OPs would have the ability to make the tps higher than default, but that option should definitely not be for normal players. An alternate way to get a similar effect would be to make it a blocktick flag that can be set to true or false, making the res tickrate 20 or 0 respectively. Another use for this ability would be to set derelict resses to a lower tickrate. Maybe add a new level of derelict where tickrates are slowed, then stopped for full derelict. This would help the overall server tps with derelict resses needing less attention from the server.