Movement Jumpy in FPS Games with new Keyboard

[Spaceninja]

So I bought a new mechanical keyboard. I went with the Ducky MK2016 and I love the keyboard for typing. Recently I have been playing some older FPS games, mainly UT2K4 and Serious Sam. When I'm moving forward or backward it becomes jumpy or almost like its a double tap, yet I'm just holding down the W key. I can plug in my Logitech wireless keyboard and it doesn't do it anymore.

Is there anything that I can do to correct this issue?