Game developers have tightly focused on Intel for years, there will be a ramp-up as game developers learn what they're doing that might not play well with Ryzen, and how to take advantage of its strengths.
Already we have shown that games like DOTA2, Ashes of the Singularity, and Warhammer: Total War have been improved on Ryzen with relatively little developer effort. We're working to do what we can and make sure developers have access to Ryzen hardware and our expertise to get rid of these strange game performance anomalies.