After installing Netcut (and uninstalling shortly after, 3-4 days) I began experiencing lag in various games, League of Legends/Counter Strike etc. (ie 200+ ping in game where I would normally have 20-30 max)
Have tried various fixes, ranging from manually scouring my drives and registry for Netcut leftovers, as well as Wincapp, and deleting anything I find.
In the last week or so (When this started occuring) I have not downloaded anything apart from CCleaner (Which a friend recommended)
Along with scouring drives and cleaning registry entries I have flushed DNS, reset firewall rules, and changed IP and DNS settings.
Have also tried using my WiFi card, with various things including my phones hotspot, and a wireless dongle, this has not fixed it and has led me to think that it is software sided.