It could be provided with a dedicated chip for WiFi encryption so that it doesn’t require offloading to the CPU that way it would just be a pipe with a fixed very low latency
then the measuring system is insufficient or there is a fault on the wired connection, it doesn't take much to realise that the level of encryption and compression on a wifi vs a wired connection cannot happen instantaneuosly.
The settings arent as comprehensive as the ones you quoted, but I think you are mistaken with them being direct competitors; at launch they were double the price of the TPL variants this is based on; and the Asus had loads of problems that made them very unstable for over a year after launch. As for weak wifi, it is a mantra I've kept hearing in reviews of TPL gear, going back a decade; but is it? I can connect to my parents Archer VR200 AC750 (the baby of the range) from 200 metres away; across a busy road, a carpark, and a childrens play area filled with metal climbing frames - bog standard set up and a cheap Xiaomi phone
I measured it in-game, over a couple of hours; game pings vary quite a lot (connection to a US server), but the min ping was the same for both. Also tested static to a local ping test server and also the same results over multiple tests with both. YES radio interference can affect Wifi, I had it myself with older "Draft N" gear, but then it was a very severe problem that also took out TV AND radio. So yes, if you get a lot of local RF noise, Wifi isnt the best, but no, the actual latency, ping etc under normal conditions was the same. OLDER routers with older chipsets DID have an issue with the wifi connection latency being higher than ethernet; which is where all this "wifi is no good for gaming" came from.
I had one and yes it was reliable, however the software is very limited in what you could do with it compared to on paper and at launch price direct competitors, eg Netgear R7000 and Asus A68U. Apart from the very early ones there's, or at least was, very little you can do about it as flashing with something more useful gives you a good chance of ending up with a brick. Wifi was also surprisingly weak compared to the R7000 that replaced it.