@jimmckinney I have 32 switches and dimmers together and I'm having slowdowns. See this thread:
I even tried to upgrade to C8 hub and it seems to make things worse.
@bobbyD I think this is the root cause of the issues. I've also attached the Zigbee Network Graph. The way I interpreted this is that these devices routes keep changing.
I'd love to get this fixed, but I'm not sure where to go from here.