@Alexandre. Thanks for your input. This is the result of the built in Deco test and a PC on ethernet gets similar results. My phone on the TrueSpeed WiFi when next to it (but has poor range) is...

I've recently had FFTP installed with Truespeed providing 600mbps up and down. The Truespeed WiFi router provides a good 400-600mbps. The Deco App tests at similar as do wired connections to PCs, TVs...