Occasional 4 ms stutter (red spike) on VSYNC Animation test

[sebyrobot24]

Hello, I recently built a new computer and I have been checking the system using UFO Test.

There is a problem, however, as on pretty much every test, it says READY for about 15 - 30 seconds, then it says:
STUTTER WARNING:
Browser stutter detected (1+). Close other apps and tabs.

Upon further test, when looking at the test

VSYNC animation time graph,

I see occasional red spikes (4 ms) every 15-30 seconds. Sometimes it takes longer, sometimes they are more frequent.
Ive also tried having applications/system running in the background all off/closed, including any rgb. Its much less frequent that way, ( every minute) but it still happens...

Should I be worried?

Here are my system specs:

5090
9800x3d
x870e carbon

in bios I have expo and global c states on, however, the spikes are still there even with these off.
I've also tried a windows reset, to still no avail.

Screenshot 2025-03-19 033154.png (232.08 KiB) Viewed 478 times

[SnatterPack]

Just made an account on here to say 5090 and 9800x3d system with same browser stutter in ufotest. I'm experiencing what I think is the same stutters in game with VSYNC enabled in NVCP. It's a whole thing. www.nvidia.com/en-us/geforce/forums/gam ... u-are-not/

[Edit by Moderator: Added linking. After a few posts, links are allowed; they are disabled for first time posters few posts due to spam]