Hue motion sensor Lux not always reporting

I have 2 hue motion sensors and use the Hue Zigbee app (no bridge). I use the lux measurement of the device to switch the lights.
I notice that the reporting of the lux measurements is very irregular. When there is no motion it can take hours before a “lux has changed” is reported.

Any experience with this?
Is this a hue issue (sensor not sending) or a App issue (homey not receiving.

I do notice “setting” for the hue in devices. But its all in ms and does not seem to chamge anything

I attached also some logging from insights that clearly show no measurements for hours until the moment I entered the kitchen.(14:20~18:00)