

Looking at Intel specs for that model of CPU has ‘Intel Turbo Boost Technology’ as ‘No’ so it may not be possible to get rid of the warning but fine to ignore. https://ark.intel.com/content/www/us/en/ark/products/122590/intel-core-i3-7020u-processor-3m-cache-2-30-ghz.html#tab-blade-1-0-7
Here’s a similar issue on their github, https://github.com/AdnanHodzic/auto-cpufreq/issues/446 Sounds like it should still be able to slow down the CPU but it won’t be able to change turbo boost due to processor not supporting that feature.
You can try seeing if you can set the speed/duplex of NIC/ports manually if auto-detection keeps getting it wrong.
Unifi I like the APs for mesh & multiple SSID+vlans but I keep them on dedicated vlan with zero internet access because I don’t trust that I properly followed instructions to disable opted in analytics/telemetry. The mgmt software is alright but new UI wastes a lot of space. The PoE switch was alright until it stopped being able to keep a config last year. USG router I kept less than a year because it was too slow with any useful features enabled. I’ve glanced around at replacement APs here & there but pretty much waiting until I have more wifi 7 compatible devices and that’ll be another couple years.