Blocky recorded video clips

I have two IP cameras (v610pt and v520ir), both are crystal clear on live view, with shutter at 1/30, but compressed saved/recorded videos are blocky and badly pixilated.

Changing the saved video settings do not appear to have any effect (for example, video file sizes are the same regardless if I select normal or high resolution/ highest image quality)

Very blocky and badly pixilated.