GPU: GTX 1650 Max Q-Design

CPU: Intel Core i5 11400H

When i first installed valorant it shows around 200 fps, as time goes on its suddenly only getting 120 fps and reaches to 90 fps. I lowered my graphics, made my gameusersettings all to 0, used performance boosting apps and nothing have worked. I thought that its because of some bloatware that made valorant low fps, but when i uninstalled unwanted apps and bloatware, its still the same problem low fps and cant reached 200fps. I installed MSI Afterburner and overclocked my gpu nothing happened basically, I installed QuickCPU and parkcontrol to optimize my cpu for gaming since valorant’s a CPU based game, still no changes happened whatsoever. GPU is always 20% below and CPU is 78-60% and temp is 80-75 degrees celcius.

I have already tried, reinstalling driver, undervolting cpu, overclocking gpu, but not reinstalling windows. Does reinstalling windows usually fix these kinds of issues?

Are there any possible fixes i can do that can actually help and resolve this problem?