I installed a several TP-Link deco systems in houses of my family and it works pretty fine. Now i am installing the x60 at my own place. When i leave the Deco in the router function i have 80Mbps and when i put it on as a standard AP i have my full bandwith of 300Mbps. I would think that the router option of tp link is much stronger then the modem of my provider. I also tried out to change the in app anti-virus settings and played with Qos option.