found this issues in a few games, tried checking the priority on task manger and to check the cpu affinity for them it and looked normal but for some reason they only use one core
Motherboard: MSI x570 Gaming Edge
bios: 7C37v1L
chipset : 5.01.29.2026
GPU: RX 6800 XT
GPU Driver: 23.5.2
CPU: RYZEN 9 5900X
RAM: 32GB 3600hz
PSU: corsair rm850
OS: Windows 11 Pro
Motherboard: MSI x570 Gaming Edge
bios: 7C37v1L
chipset : 5.01.29.2026
GPU: RX 6800 XT
GPU Driver: 23.5.2
CPU: RYZEN 9 5900X
RAM: 32GB 3600hz
PSU: corsair rm850
OS: Windows 11 Pro