Yeah, I know, but it's recognized the update and reboot time is about double for the C8 over the C7. And in my experience the C8 has the same load as the C7 had (since it was migrated from the C8. It was asked early on and they even acknowledged the C8 has a longer update and reboot time.
In my Current set up the C8 has ONLY zwave and Zigbee devices, while once C7 has all the actual automations and rules, and the other has all the cloud integration (only) with no rules or app. those C7's update/reboot in about a minute and a half where the C8 with only Devices (40 total ) takes two and a half to three minutes to update/reboot.