@TP-Link Yes i tested it on the main deco, the other decos faces the same issue as well. This is my macbook pro on a different router i plugged in the network. I have had this deco since May 2020....

It seems that my macbook pro which forces 20Mhz is facing the same issue as well on the 2.4Ghz. FYI, this is the speed on 5Ghz

@TP-Link Heres a speedtest screenshot from my iphone. Deco X60 is running on 2.4Ghz only. So i got my brothers Android to see the link speed. The speedtest is around the same. The 2.4Ghz is on...

The 2.4Ghz performance of this deco is really bad, turns out its using 40mhz channel width and there is no way to change it. I am next to the router and I am able to get full speed of my internet...