This might not be the correct community, but it's the closest fit.
When I'm downloading, I have peak speeds of 240+mbps, however my speeds often drop to 480kbps or even lower. I don't see anything else downloading anything (and even if there is, shouldn't my overall speeds remain constant, just the data coming in would be split between the two rather than lowering the data coming in?) Is there a way to fix this? It's really getting in the way of downloading things and playing multiplayer.
As far as my network, I have a Linksys router EA7300 with the most up to date firmware, my house has built in ethernet ports which I'm connected to, Wifi is turned off, and my computer is the #1 prioritized device on the network.