To get any increased wireless bandwidth, you will need to match the method by which it's being "turbo-ed". That varies by manufacturer and sometimes, even between models from one manufacturer.
You won't with the Orange Livebox which appears to be standard 54 Mbps.
So you will need a new Netgear 108 mbps wireless router to match, safely.
It appears Netgear promotes 3 of their routers under the "Related Products" section on the right hand side of that web page.