Thanks - I will be sure to try this. But I am dubious that this is a network or power issue. I can connect to the hub just fine.
I also have two other hubs on the same switch which are having no issues - a C8 that I use exclusively for zwave and a C7 which I use exclusively for zigbee. I started doing this when I first switched to the C8 and started having all sorts of zigbee issues.
The C8 and the C7 don't have much on them as I just access them through Hub Mesh. They are all running fine and are quite responsive.
I was having serious performance issues with my C8 when it was my main workhorse. I posted about that. But then the C8Pro came along and I installed that and things were much better. Then that started to get slow which is what caused me to post this.
Perhaps it is too many apps, too many rules, too much on Mesh, or none of the above.
But this is being looked at by the Hubitat team:
and is "still under investigation"