>>274654605
make sure you aren't thermal throttling on your CPU since you said you're on stock, task manager can tell you
GPU seems fine enough for 1.0 SS and 90 Hz, double check you're on 1.0 SS
RAM is def okay
make sure you aren't running any autism case LED programs, anytime I have the LEDs in my case going the program that runs them tanks my FPS somehow
only things I can think of

>>274654739
price hike for all the kids opening their Christmas quests