nah, that doesnt work, even after clean pc install i have same problem. but that stutters are for like first half of every game, then they disappear.
i only use browser, and i dont have that faceit program, just AC
If it's been several years since you last played, check your launch options. I think my issue with Faceit AC stuttering was resolved by changing one of my launch options for my +mat_queue_mode... I cannot remember what it was or what I changed it to but it made a significant difference... And actually, the graphics quality looked better as well.