Stuttering performance on 14th gen CPU

I don't know if it's a very specific problem but my game performance is really poor even tho I have the recommended requirements to play the game.
CPU:  i5-14600K
GPU: 3060 Ti

I have my RAMs at XMP Profile 1 even and at first I thought it's the VRAM which is causing the issue because sometimes I got this message: "Video memory threshold exceeded. CPU performance may be reduced."
As I tested with more lower graphics to keep the VRAM at 5GB out from 8GB it's still the same.

I attached a video about the problem what I get after like every 10 seconds of gameplay: basically slowing down and lagging like I have 10 FPS.
I also attached a picture about the MSI Afterburner where I can see that when the stuttering happens, everything is spiking.
Both CPU (47°C) and GPU (49°C) temperatures are perfect, so thermal throttling is not the issue.

Does someone also experience this issue like me? Please help me find a solution!
Thank you in advance!