New user's render problem

[ginovanta]

Hi!I'm new to keyshot and i was wondering how to get rid of the grain issue you can see on this renders.
The slight better one is actually the first one i did but i can't remember the settings (is the first day i use the software XD) and is not that good either.
I suppose the fault must be in the lights material but how to do?
Thanks

[3D Off the Page]

Try changing the scale of that material.