I have a relatively new setup with three BE63 deco connected with ethernet backhaul.

My ISP is fiber to the home with 1 gig down and up

On a wired connection anywhere in the build I can max out the download and upload 

Wifi is where things get interesting, I can only get half of my available download speed. Usually in mid to upper 400 on the down but upload would be what I expect to see in the mid to upper 900s

I am using the 5 and 6ghz mlo network so that should have no problem getting those downloads.

anyone else have this issue or can provide any assistance.