lag and slow pc

❔Question🔧Technical Issue🖥️Desktop Issue🎮In-game Issue

So when ever i tab out of valorant to check my discord or to try and do something else, my pc or valorant has an issue of making me spike up to the like 200s or higher and my pc becomes hella slow. I used to not have this problem, i've already tried uninstalling riot vangaurd and idk what the issue is pls help, its worse when im in a discord call.