Try shooting in pro mode and adjust your aperture (2nd option from the left) down (larger number). That will let less light in. Just slide the adjustment back and forth and you'll see the difference on the screen. You might need to slow down your shutter speed too. Just slide it back and forth till you get the picture you're wanting.
This is kinda a crude comparison as there are no lights...wait, I DO have some lights I can demonstrate with. But here is one of the ligthts in my bathtub. The one that has the green color wash all over the white tub was shot in auto. See how the light it's self is blown out? To keep that from happening, you need to let LESS light pass thru the lens. A larger aperture number is a smaller opening...less light passing thru.
The second picture is in Pro mode with the aperture and shutter speed adjusted till I just got the nice green color (vs blown out white color) of the light. Depending on how you adjust the slider, you'll get different results. I like using a 2nd curtain flash that gives me a tight light (not blown out) with "star" rays and it illuminates the scene. I don't think the S7 has that...but maybe it does
Just using those two sliders... aperture and shutter, you can see what the scene will look like. Hope this helps. Probably not explaining very well. I have a grand-daughter impatiently waiting for my attention