Question Extreme stutter and poor performance while gaming and other tasks.

Jan 9, 2025
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So my PC has been seemingly getting slower and slower. In games, my clicks will take a while to register (not a network issue; the PC is just that delayed and slow), and games will stutter so hard that I'm stuck on a single frame while my FPS counter shows 100+ fps. Even when the game is not "stuttering," 100+ frames does not feel like 100+ frames; instead, it feels more like 30.

My specs:
i7 8700k non-OC
GTX 1080ti
16GB 3600mhz ram 1.45v
240GB Sandisk SSD (Windows boot drive + games)
2TB WD Blue HDD 5400rpm (Storage—pictures, videos, etc)
Asus strix z390F Mobo
H100i v2 AIO

So I had thought it was my CPU overheating, but while stuttering, my max temps were 70-80 degrees. GPU during stuttering is around 79-93 degrees. From what I read, these are fairly normal temps—maybe a little hot, but not too concerning? I've tried throttling my GPU a little bit to see if the lower temps would stop the stuttering, but no luck.

Ive also recently removed all dust, removed old and applied new thermal paste to the GPU and CPU... Still no luck.

Ive been playing mostly Marvel Rivals, which is terribly unoptimized. I play everything on low except for textures and mode detail, which are set to high. I average around 110 fps, but again, it truly feels like 30, and not even a good 30. Meanwhile, my friend plays on one of those mini computers with integrated graphics and still is more stable than mine.

Games and everything I play is on the SSD. Last time I checked BIOS, my SSD wasn't showing in the boot options/priority list, but it still boots and has access to the drive in Windows with no issues. Never updated BIOS. GPU drivers up to date. Can't think of anything else.
If anyone has any info on how I can get my PC back to performing how it used to be, it would be greatly appreciated. Thanks!
 
You forgot to mention the make and model of you PSU, include it's age as well.

my max temps were 70-80 degrees. GPU during stuttering is around 79-93 degrees. From what I read, these are fairly normal temps—maybe a little hot, but not too concerning?
Make and model of your case? Number of fans in your case? How is the AIO mounted in your case?

Ive been playing mostly Marvel Rivals, which is terribly unoptimized.
Have you taxed the system with other titles besides Marvel Rivals?

Never updated BIOS.
BIOS version for your motherboard?

GPU drivers up to date.
Using DDU, then manually installing the latest GPU drivers in an elevated command?

240GB Sandisk SSD (Windows boot drive + games)
What is the model of your SSD? Would be a good idea to also see what your firmware for the SSD is at this moment of time.