Delay/Buffer for Window Capture

I have a Elgato GameCapture HD for capturing modern consoles and PC gaming (i have a capture PC, and a gaming PC), however, there is a noticeable delay due to it being USB device.

To remedy the delay, I simply added a delay to my WebCam and my external mixers audio. This works for when I am just doing games alone.

However, sometimes I would like to have my podcast co-host Skype in with his webcam. The problem here is that I cannot add a delay to his Skype video (his Skype audio is routed thru my mixer, so it gets the proper audio delay via OBS).

Could an option be added to Window Capture that allows me to add a delay/buffer as well.
 
thanks. got a Game Broadcaster HD on the way. Was planning to get an internal card eventually, this just pushed the issue for me.
 
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