Nintendo and its lack of any reasonable sense when it comes to modern technology.

[allenmaher]

I ran through a bunch of html5 speed tests with different servers across NA on my laptop and wiiU both on the same wiifi router.

speedof.me was about the same as yours, however, I had almost parity when using other tests like
testmy.net and using a variety of servers (some network hops are worse than others). I could not find a local test in HTML5 (I can in flash... but then could not compare)

try testmy.net and see if it is better or the same.