check all drivers see each product support page.
Brand pc support page or custom build then its Brand mortherboard support page.
sound card and graphic card support page.
if Nvidia use Nvidia experience optimized settings.
dont OC ( only laptop with intel boost is not a direct OC )
close all other apps, is system idle no system update running or anti virus app use live scan same time while playing, some can do that. )
then all that is done, there is more you can do that is optimize pc. but above advice should cover basic.
hardcore pc game, use alot other tool app to fix know windows bugs and tweaks
CCleaner ( junk clean and windows registration check 2 task with that app )
iobits driver boost ( find even more driver that is onboard our mortherboard )
iobits advance system care ( scan pc for alot of system issue )
iobits uninstall ( same as ccleaner but i have seen leftover installation same as ccleaner to get ride of stuff that should have been removed by app itself. )
iobits defrag ( this actual can defrag per game now, and system we did that alot inold days then hard disk was slow, if SSD only do this ½year
ps.
win10 dont forget use windows own disk cleanup in advance mode. ( previous OS and alot of junk is kept 30gb and whats the point then you cant roll back to it ) take alongtime it use DISM also so dont close it then it look like it cant be done with it.
dont forget power management so many play with balance mode ( most a laptop issue, they have game mode or entertain mode its just full performance
graphic
use quality mode, dont use balance mode some games can flicker with this, its only old or oudate graphic cards that might run game better with balance mode as last option. card is singing its last song. should be upgraded
other things use Native Resolutions, this has seen before if some user have select higher resolutions then card can handle or monitor dont like. ( watchout for DSR = Dynamic Super Resolution ) that can send many Graphic card to its knees, require highend graphic cards that can handle it.