@Joseph-TP 

I have already tried everything, even connecting on IOT network, always same values 

Repeat same device on other router manages to do the above

Tried with iPhone 15 Pro Max is returns the same values 

Looking at reviews of TP-Link's new Wi-Fi 7 line, Devices in Wi-Fi 6/6E fail to exceed the speed indicated by my speedtests 

Very peculiar thing that happens now and then when I do a Speedtest that the meter goes up to 1700mbit and then drops to 1200mbit constant. Like QOS on, but obviously any limitation is off

  @Joseph-TP 

In the topic there is the screenshot with the link speed of the device and it is at the maximum

They attach it again

Already tried to enable QOS and give device highest priority but no improvement

  @Zak2298 

First of all, please answer, why do you need such speeds on one client?

Such routers are bought not so that the speed test can be tested on one client, but so that a large number of clients can be connected within a small area

in fact, the maximum theoretical throughput of both tpink routers at 5ghz is 2882 Mbps

in reality, this speed can be safely divided by 2, which is what you get.

and in the Asus you mentioned the formula is WiFi 6 (802.11ax) (5GHz): up to 4804 Mbps, divide by 2

in general, don't bother with the speedtest, just use it