You need wired backhauling for faster speeds. More here.

Thanks!
Just purchased the Asus RT-AX88U Pro, and also the XD4 (2 pcs) set. Got a 600 mb/s connection.
Whatever I wouldn’t do, the XD4 satellite can’t breach the 300mb/s, no matter if I’m 0,5m from the router or 10m away…is there some specific setting I should change?
Thanks in advance!

Yes!

First, what you said was incorrect. Second, the two’s performances are comparable. Third, they were tested years apart and the changes in firmware, drivers, etc. played a role. Forth, it is what it is. Finally, you need to read the entire review, not just the performance part.

How is the new ax88u pro doing worse in every graph compared to gt ax6000 when it’s more recent device with same parts inside?

👍

I’d go with the 88U Pro. It’s newer hardware and will more likely get AsusWRT 5.0 firmware.

Oh okay. So should they perform the same? I cannot decide which one to pick as the price is almost the same in my country. I want the one with the best performance but I’m really not sure if I like the “toyish” design of GT AX6000.