Hello all, I hope this post finds you well! I’ve been diving deep into optimizing my Z-Wave network lately, and I thought I’d share my experiences and insights with you all. 
As some of you might know, I’ve been running Home Assistant on a Raspberry Pi 4B (4GB) for about two months now. I switched from a previous setup and have integrated around 120 Z-Wave nodes, almost all of which are Z-Wave+. So far, everything seems to be running smoothly in terms of CPU and memory usage, and the temperature hasn’t been an issue either. But there’s this one thing that’s been puzzling me…
From time to time, I’ve noticed a delay in simple automations. For example, when motion is detected by my Fibaro multisensor, it takes about 8 seconds for the connected Fibaro dimmer switch to turn the light on. This delay is consistent, and I’m struggling to figure out whether it’s related to Z-Wave, Home Assistant, or the hardware itself. 
I’ve tried to troubleshoot this by checking the network topology, ensuring that all nodes are properly configured, and even considering the possibility of interference. But the delay remains, and I’m curious to hear your thoughts. Is this kind of delay normal with such a large Z-Wave network? Could the CPU power or hardware latency of the Raspberry Pi be contributing factors here? And would upgrading to something like an Intel NUC make a significant difference? (I know it’s a tough question, but I’m really curious to hear your experiences!)
For those of you who’ve managed to successfully run large Z-Wave networks, I’d love to hear about your setups and any tips you might have. Have you encountered similar delays, and if so, how did you resolve them? Did you stick with a Raspberry Pi, or did you switch to a more powerful device? Your insights would be invaluable to me! 
On a lighter note, I’ve also been experimenting with integrating different brands of smart devices into my ecosystem. It’s been a bit of a challenge, but the satisfaction of seeing everything work seamlessly together is truly rewarding. If anyone has tips on how to make this process smoother, I’d be more than happy to hear them! 
Thanks for taking the time to read my post, and I look forward to hearing from you all! Let’s keep the learning and sharing going! 