Windows 10 really slow

person31

Honorable
Jun 13, 2015
228
2
10,695
Hi, I have installed Windows 10 on my computer which should easily run it in theory but it seems to lag a lot on games. It takes about 3 minutes to start GTA San Andreas and PES 6 lags like hell when trying to play a game. Is there a way I can reverse the installation back to Windows 8.1?

Thanks