When I boot my pc/restart the network adapter I will get about 480 Mb/s down. It will then slowly drop until it's stable at about 90 Mb/s, usually within an hour. None of the other devices on the network have the same problem. My ethernet adapter is a Killer E2500 with the proper drivers installed and I'm using Windows 10. I can't find anyone online with a similar issue, so I'm coming here for help.