How to increase Agent Check Interval?

[hanspeter]

Hi,

I'm fairly new to Zabbix. I'd like to decrease the load the Agent generates on the hosts. It is already relatively lightweight, but I want to reduce the load even further and extend the intervals between stuff is checked. The lowest interval for items in Zabbix Frontend is set to 1m. Nevertheless, the agent collects data once per second. When I increase the debug level to 4 for the agend it continuously prints messages like these:

253688:20181128:134959.566 In send_buffer() host:'hostname' port:10051 entries:0/100
253688:20181128:134959.566 End of send_buffer():SUCCEED
253688:20181128:134959.566 __zbx_zbx_setproctitle() title:'active checks #1 [idle 1 sec]'
253686:20181128:134959.602 __zbx_zbx_setproctitle() title:'collector [processing data]'
253686:20181128:134959.602 In update_cpustats()
253686:20181128:134959.606 End of update_cpustats()
253686:20181128:134959.606 __zbx_zbx_setproctitle() title:'collector [idle 1 sec]'

How can I increase the value in which the cpustats are updated? Is there somewhere a general how to that I missed? I'd like to keep the impact of Zabbix as minimal as possible. Some checks are set to a interval of 5mins, so I don't care about resolution that much, rather than the agent not having an impact

Thanks!