That may be your experience, but I've never found any noticeable internet performance difference between wired and wireless, no matter how many times I've tested both over the past few years. Use whatever works for you, but most ISP speeds don't come close to matching either wireless or wired network speeds, so for purely internet usage, either is fine.Thanks for the theory, but in practice wired is much snappier.
Big files of speed-checking sites give a very distorted image.
Try a big Pinterest page with 1000+ HTTP requests and time the difference.