Hello, I have a problem with my Elgato HD60 game capture, here's the video with an example and me explaining my problem: https://www.youtube.com/watch?v=xeMdDsL3vyY

How can I stop this from happening and what is even causing this?

I don't know what kind of computer specs I should include for this, but here are some:

Processor: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz 3.60 GHz
Installed memory (RAM): 8,00 GB
System type: 64-bit Operating System
Video card: NVIDIA GeForce GTX 650

Any help would be much appreciated! Thank you!