OBS Recording Problem - Help Please

When I record with OBS with my Blackmagic Intensity Shuttle for USB 3.0 hooked up, the video quality stutters, for example, when playing on the xbox one on forza, the background is smooth and moves well. But when on the recording from obs, the background stutters and does not move smoothly. It also happens on XSplit and FFsplit. PC games work fine and record fine. Can anyone help me with this?