My frames are capped in all games (valorant included) at 160 fps, but my games all now run at 157-158, and is much less stable overall in terms of FPS and responsiveness. I have tried both boost and no boost, and the results are the same. When I play fortnite, holding that 157-158 is nearly impossible now as well. Not sure what the issue is but its been happening since the new driver update. Fortnite was struggling a bit already, but this driver has made the games performance worse, and in Valorant my FPS is generally higher than in fortnite, but even it doesnt feel as stable in terms of gameplay or FPS.
I play on a R5 3600 and a GTX 1660 super
Edit: running at 157-158 vs 160 isn't a big deal, as I have it capped below my monitors refresh rate (165hz) due to G-Sync anyways, but its the drops and instability getting to me
Have you tried turning Reflex off? Does that make a difference? If it's a driver issue you might need to reach out to NVIDIA and let them know your specific card is having a small decrease in FPS with the driver.