Hacking Wifi Limited?

[Xeology]

So here I am ftp'ing files over to my flashcart because ubuntu is a horses procreation parts and messing up my usb transfer ultimately screwing my sdhc card. But filezilla reports it uploading at 100 k/s but drops down to 30ish, and it will keep doing this, did nintendo limit the wifi on purpose??? If so is there a way around this? I am asking because it looks similar to what internet downloads do on a capped isp. . . . sorry if I missed another post about that. . . . using a dsi btw.