From the specs, it seems this Deco is up to date. I have a fiber optics pkg that is 600/600 up/dn, Ethernet cable gives 550+/550+ up/dn. This is excellent. The problem is with the wireless (15ft away), I can only get avg 180Mbps. Checking the settings, I cannot change the channel (yes yes I know this is an ongoing issue, however since my firmware seems to be newer than anything TP-LINK can offer, I assume it is the latest), 2.4g for me should be at 6, and 5g should be around 150's - 161, yet it is in the low 40's.

Surprisingly this router does not have much in the way of changing hardly ANY settings. Very odd. 

I would expect at least 300/300 for the wireless, I know that getting 600+ up/dn would be a challenge without advanced software.

Are there any other setting on this Deco I CAN make that might help?  Thanks!