For GOG members who have a somewhat newer NVIDIA GPU and find it somewhat of a daunting task to optimally adjust your Control Panel Settings for Sacred 2, view the screen captures attached. Your Global Settings will most probably be different; it will probably be best to have many of the options set to be controlled by newer games automatically under that tab.

If Sacred 2 doesn't show under the Program Settings tab, you may add it. Search for Sacred 2's folder location and select it.

After adopting the settings shown below, I trust that you will experience smooth performance at Ultra settings. The beauty of the game, now so augmented, will present itself in all of its colorful glory and enticing splendor.