Open Zwave 1.6 beta running slooow

I’m running OZWDaemon 0.1.179 (OpenZWave 1.6.1520).

Unfortunately the system is lagging. From a PIR picks up a motion to the light goes on could be 30-60 seconds.

I have no idea what the system is doing, while I sitting there in the dark waiting for the lights to come on. I’m running Hass.io 0.117.6 on a NUC and CPU load etc. is around 0.5-1 %, so it’s nowhere near being overloaded.

Also " Network Starting
Initializing the Z-Wave controller" takes 10-15 minutes, before the network is ready.

How do I troubleshoot this?