What is the max. speed that comes out of the deco m9 unit without the wifi? MNSI which provides me with 1000Mbp/s download and 750Mbp/s upload I want to test if my deco can really handle that speed

I got 1GB internet installed in my house. But when I run the deco speed app I get 560 mb/s download and 730 upload.... Why am I not getting faster download? What is the fastest I should see with deco

I want to upgrade to 1gb fibre will my deco m9's be able to handle 1gb fibre? will I see full speed using them?