Domoticz

Hi,
I am on zwavejs for a a few months now and quite statisfies with it.
However, when we go to bed around 1 am response is very slow.
Before and after 1 am when I switch of a binch of groups response is imidiatly.

Anyone see this behaviour as well or has an explanation?

Domoticz is slow at xx:00 when automatic database backup is enabled: in this case domoticz makes a copy of the database and save it in the backups dir: during this process, scripts execution is slow, expecially at midnight.
Is this your problem?
I never used zwavejs hw, but it is a bit strange that it slows down at 1 am.