ofVideoGrabber 4k UHD Capture Latency?

I’ve got a Logitech Brio and I’m trying to capture a 4k USD resolution video stream (3840 x 2160px @ 30 FPS). The issue is the latency starts to get very apparent after a few seconds. Is there a way to turn off buffering?

Tried updating a texture on isFrameNew() and using setPixelFormat(OF_PIXELS_NATIVE). Using a MacBookPro with Radeon Pro 450 graphics card. Openframeworks 0.9.8 on OS X.