1. Plug in the webcam to the computer and wait for it to install driver. Download and install the PotPlayer software--- click [Open] --- select [ Open Webcam/Other Device]
Download software from here: https://potplayer.en.softonic.com/
3. Switch to【Device】-【Webcam】page
4. Select the ... icon and you can change the Hz of HD USB webcam on this page.