Hi Weaver.
Been away trying a couple of different things purely out of interest. I will never use all the speed fttp is throwing at me , my son might though
Anyway I tried replacing a section of cat5e structured cabling with cat6 between my main switch and asus wifi point (non wifi 6) as this required no ladders or new hole drilling. I would say its about a 20m run. I also replaced the section that goes from my qotom to the main switch with cat6. New cat6 patch leads fitted. My phone (s10) was maxing out at around 450/110 using the speedtest app on 5e.Since doing the changes the phone reports around 600/110 consistently. Tbb single thread speed test element has also improved. Worth noting the asus wifi point passes through one of the cheapy 8 port switches.
Spurred on by this I decided to replace all my hardwired 5e lines with cat6 which I have been doing recently and installed a cat6 patch panel. Cat6 is so much thicker than 5e. Had some fun trying not to bend it too much as most of my lines run externally.
My i9 pc definitely gets a better ping time and better tbb speed test results than the 5e. I left the 5e in place to this machine just for testing as its on the furthest point of my network.
I'm pleased with the results so it was definetly worth the effort. Probably overkill but I just wanted to see if I could improve the results. Bad 5e or my wiring of it who knows but fitting the cat6 seems to have done the trick for now.