Sensor update messages generate too much log content

The sensor updates currently generates quite a lot of log messages, e.g.

03-06-2021 10:47:21.446 ioc Threshold refreshing, last update was 20.0 ago, interval is 15.0
03-06-2021 10:47:41.479 ioc Threshold refreshing, last update was 20.0 ago, interval is 15.0
03-06-2021 10:47:51.498 ioc Sensor refreshing, last update was 60.0 ago, interval is 60.0
03-06-2021 10:48:01.516 ioc Threshold refreshing, last update was 20.0 ago, interval is 15.0
03-06-2021 10:48:21.556 ioc Threshold refreshing, last update was 20.0 ago, interval is 15.0
03-06-2021 10:48:41.590 ioc Threshold refreshing, last update was 20.0 ago, interval is 15.0
03-06-2021 10:48:51.610 ioc Sensor refreshing, last update was 60.0 ago, interval is 60.0

This fills up the logs quite significantly, and makes troubleshooting a bit more complicated.