Help with Iray settings

SandySims

I just picked up the Noir Low-Light set.  I set up a simple scene and tried using Iray on it. Now I left all the settings the way they came up.  I don't know enough to reset anythinhg, but to my eye, it's still a bit grainy.  How do I get rid of that?

Linwelly

looks like you need to increase the render time (max time) and/ or render samples (max samples)

that's in the progressive rendering in render settings

if that doesn't help, try to set the pixel filter radius to 1, standart is 1.5, that's in filtering in the render settings