SRAM Rival noise issue
 

Hello,
I have recently installed SRAM Rival group on my CAAD9, I really like everything about the setup. It shifts very smoothly and is not noisy when shifting. However it is noisy when pedaling, sounds like i'm cross chaining in almost every while in the big ring. Whether I use the Index or not. The noise seems to be coming from the pulleys of the RD.

Is there a break in period? Is there something that I should adjust?(obviously)