Optimiz windows 7 for ryzen

hello everyone i travel to amd recently and manage to install win 7 ( thanks to canonkong ) but it like little bit slower than before (installed on nvme )and un optimized ( games fps drop’s and crashed) any suggestions
aorus b450
r5 5500
rtx 2060

witcher 3 laggy
ac odyssey lag some times but crash after cutscen
dxmd ( horrible lag when hacking ) crash