What is Bazzite using/doing to optimize for gaming?

I always wondered what bazzite means they adjuste CPU scheduler and optimuzed for gaming i wonder what that means? Did they just recompiled kernel with some options? Added some flags to /sys/proc? What exactly did they did to optimize it? My curiosity comes from that i have been using gentoo for years i love portage, and i recently started to use it for games and i leave the ease of use with portsge to indtall vulkan and easy driver managment, but i was curious how would bazzite offer more performance? Could i apply it to my system without reinstalling? I looked around in their wiki couldnt find much. Thank you for your answer