Keyboard feels like sticky keys

Sometimes my keyboard feels like it has sticky keys or it is just completely lagging behind. My current keyboard is a Razer Blackwiddow Chroma but I have tried other keyboards and it is still doing the same thing. I first noticed it badly when playing CSGO and now when typing this It has been very frustrating. The keyboard is plugged straight into the motherboard. I run Windows 8 and I would prefer to fix the problem outside of a reinstall as Windows 10 is coming out in about 20 days.
Thanks in advanced (I hope)