I understand why it looks that way, but that’s not quite how it works.
The CPU isn’t simply being “fed less power.” Modern SoCs continuously adjust both their clock speed and voltage based on the current workload. When there’s little work to do, the CPU runs at a lower frequency and voltage to save power. As soon as more performance is required, the governor increases the frequency again.
It’s also important to distinguish between CPU utilization and CPU performance. Running at a lower frequency can make the reported CPU utilization appear higher because the same amount of work takes longer to complete, but that doesn’t necessarily mean the CPU is unable to keep up.
The Zigbee, Z-Wave and Thread radios are also dedicated radio chips with their own firmware. While the main CPU is responsible for e.g. processing messages and running automations, a lower CPU frequency does not automatically translate into degraded radio performance.
If you’re experiencing actual issues such as reduced radio performance after updating to 13.3.0, I’d recommend getting in touch with our support team. They can collect diagnostics from your Homey and help determine whether there’s an underlying issue specific to your setup.
