How to remove lag?

[Jaycee]

I'm experiencing a 1 to 2 second lag whenever I'm recording. I usually record 1-2 hours of gameplay. The lag will occur random while I'm recording but on the most part its really smooth. Is there any way to fix this?

PC Spec's
i7 4790k
EVGA GTX 780 Classified
EVGA Z97 Classified
Corsair Dominator Platinum 8GB
Corsair Neutron XT 480GB
Corsair H105
Western Digital Caviar Black 750GB 2X
Corsair AX750
Corsair Carbide Air 540
ASUS VG248QE

Thank You!