To get into the camera GUI from the NVR, you need to first access the NVR GUI by going to a computer and opening up a browser (preferably Internet Explorer but Pale Moon will work as well) and type in the IP address of the NVR and login that way. Next go into the camera settings page on the NVR and look for the Microsoft e Web Browser and select it and it will go to the camera GUI (photo credit bigredfish from his PSA thread). Your screen may look a little different to get into the camera gui and see if doing it this way gets you access to some other features the NVR is blocking - do not worry about the Port number and circle as that was from another issue someone posted.
Simply select the blue IE icon and it will go to the camera GUI and from there you can set the camera parameters.
What you will find is the default is probably better.
While the vivid will create a nice static image with vivid color and contrast, in some fields of view and certain light conditions, it will make motion problematic.
Better to have a little less vivid coloring but good motion video to be able to freeze frame and get a clean image of an object moving than a great looking static image, but then useless video when motion happens.