Currently, Zabbix frontend suggests a default update interval of 1 minute for LLD rules. Using such a short interval can lead to several significant performance problems on large instances, including:

• Overloaded LLD processors on the Zabbix server
• A significant increase in network traffic (due to frequently sending large JSON objects over the network)

Our official templates typically utilize a 1-hour update interval, which serves as a good compromise.

Additionally, in recent Zabbix versions, the LLD rule will be executed immediately after creation, eliminating the necessity for smaller update intervals initially.

I recommend setting the default LLD update interval in the Zabbix frontend to 1 hour for all new LLD rules.