Game stuttering only in ONE game, but why?

Dec 21, 2018
2
0
10
Hey guys I'm in desperate need for help since one of my games stutters a lot. And I'm wondering why since people with lower end pc does not have any problems with it. My setup:
CPU: i5 9600k OC to 4,8Ghz ( I have water cooler)
GPU: Gtx 1070 ti 8GB
RAM: 16GB(2x8) 3000 Mhz.
EVGA G2 as PSU (1000w).
144Hz Asus VG248QE monitor
Game installed on M.2

- Gamebar turned off
- Nvidia 3D settings favoring perfomance
- power settings => high performance
- game settings all on low.
- Game priority set on high
- All drivers up to date with driver booster 6
- Internet speed: 120mb/50mb (connected through cat 6 lan)
- Scanned for virus.

Monitoring temps and etc. with msi afterburner:
https://gyazo.com/d3de7c44a4156bebe057117cd2b2f06e
https://gyazo.com/082fadb49ee347ed5b2e13db8ca704b3

Can anybody tell me what's wrong and what can I do to fix this? thanks.