I hadnt gamed since 2013 and decided to go pc in 2021.
Bought a

Legion 5-15IMH05H (Lenovo) - Type 81Y6

It ran fine, few hiccoughs.
Then some dead pixels, bought a monitor.
Played mostly tarkov and some other games
fast forward to like 3 days ago its taken a isht. Cant run tarkov, or hd2, halo or once human

im running into desync, stutters, lag. im like 4 to 5 minutes behind in a tarkov load in now, youtube is taking a few extra seconds to load than normal sometimes.

low settings dont fix anything, looked for updates from intel, lenovo and windows

Idk what other info anyone with an idea might need.
i run opera gx, other than that, occasional edge browser, might switch to firefox ig, steam, discord and minimal use of anything else since like march-ish.

i tried to defrag and clean logs and caches, did the lenovo scans,
im not completely ignorant but i never delved into pcmr. if i did i should've bought my boys 1800$ setup, instead of a potential brick lol