Cut Crystal + Metal w/Backdrop Ramp = Sparkles

[CoraleeS]

Brand new Keyshot user here, so I apologize if this is a really easy question. I'm attempting to render crystal with a softly brushed chrome and getting what I believe is called noise or 'artifacts'. It looks like rainbow sparkles on my background ramp/ground plane. I have a larger room scene with crystal pieces and the same thing is happening in that scene, only all over the walls, etc. I'm sure this is simply settings, but I'm not sure what.
Thanks for any suggestions!

disclaimer: My computer stinks, but it's what I currently have at work. So I need minimum settings to get something decent. It uses almost all my PCs juice to render and I can't do much while that happens.

[Chad Holton]

Try turning off caustics or use "Product" lighting preset.