Question My PC runs fine on +120 FPS BUT stutters at 60fps

[Peppy2-5-2023]

I have a M27Q IPS 170 Hz monitor and a LG IPS 60 Hz monitor from 2015. I have no problems running games like God of War, Resident evil 4 remake or Battlefield 2042 on an unlocked FPS. However, when I lock them in 60 fps mode, they begin to stutter badly, with or without Vsync, Free sync on or off, or turning on 60 Hz mode. The same happens on games locked at 60 fps, like Elden Ring and Fighting Games, or on old games with no option for a high refresh rate.
My PC specs are:
Processor: Intel Core 12700k
Motherboard: Asus Prime z690-a
GPU: AMD 6700 RX
Memory single stick RAM Kingston DDR5 16GB 5200Mhz Fury Beast Black x1
NVME SN750 BLACK 3400MB/S
PSU 750W Corsair Silver Certificate

 

[ak47jar3d]

I had a similar issues with my 6900 xt formula. I enabled anti lag and enhanced sync and it seemed to solve my issues.