I didn't want to get into that because I am of the mind that if you are that enthusiastic/passionate about your performance stats and look at the granular detail then you should know that you can do better than a shub 3.
As an example, below are 2 links for a site that I have used in the past both for helping other forum users as well as deciding which routers to buy for myself. The first link is a general link so you can see how you can compare what appear to be many similar spec routers and the second is a link to the wireless performance page in a review for my router (the Asus) so you get an idea of the sort of performance data you look at if you were to consider buying your own router (which would be a great idea).
https://www.smallnetbuilder.com/old-.../74-wan-to-lan
https://www.smallnetbuilder.com/wire...owall=&start=2