I am not a professional photographer
but I have seen some very good photo's taken with the Icon at night.
It's not easy though.
And many, if not all, are Post Processed through Photoshop or some other software.
Changing to the Highest ISO and Shutter Speed will do nothing for you, in all conditions.
That is not an answer.
The Camera is not great at long shots without being in really good lighting, as in bight day light.
The camera is best used at about a 5 feet away indoors with indirect incandescent lighting (aka low light conditions), maybe further, depending on how well you can choose the right settings, and maybe a tripod.
You will still get the low light issues (grainy areas, and you can try to over come them by getting to know the settings
(ie, knowing light, ISO, Shutter Speed)
These are the numbers you need to research and become familiar with,
Sensor size: 1/2.5 inch
Main camera f-number/aperture: f/2.4 (a.k.a. F-Stop)
Camera focal length: 26 mm
Camera minimum focus range: 10 cm
Flash operating range: 3.0 m
Keep in mind that better lighting will give better results at a distance.
Because this is a fixed F-Stop, it's not easy to adjust for many conditions.
Each of these links below will give a little general information based on the lens we have.
Understanding Camera Lenses
http://www.cambridgeincolour.com/tutorials/wide-angle-lenses.htm
How to Take Photos in Low Light – PictureCorrect
What Does The MM Mean On A Lens? - Digital Photo Secrets
How to take awesome low light photos without a tripod or flash - Conversations