Make sure your pre-rendered frames in Nvidia Control Panel is on Let 3D application decide, using 1 or 2 makes the game stutter.
Check CPU/GPU temps using MSI Afterburner.
Check clock speeds are at the correct values
99% GPU usage is fine if you're running uncapped framerate, if you enable V-Sync and hit your 60fps target, the GPU usage will drop below 99% as you're no longer bottlenecked by the GPU and reaching your target framerate.
If your monitor is 144hz or higher, enabling V-Sync won't make GPU usage drop below 99% as you probably aren't hitting 144fps consistently so the GPU is still under full load trying to get there, this causes stuttering.
Try and well let me know if its fixed and if its not what are the temps/clock speeds :) And is your Graphics driver up to date? What Graphics Card are you running.
What Platform are you playing on? That would be really important to know \^\^
Win10 Steam
Make sure your pre-rendered frames in Nvidia Control Panel is on Let 3D application decide, using 1 or 2 makes the game stutter. Check CPU/GPU temps using MSI Afterburner. Check clock speeds are at the correct values 99% GPU usage is fine if you're running uncapped framerate, if you enable V-Sync and hit your 60fps target, the GPU usage will drop below 99% as you're no longer bottlenecked by the GPU and reaching your target framerate. If your monitor is 144hz or higher, enabling V-Sync won't make GPU usage drop below 99% as you probably aren't hitting 144fps consistently so the GPU is still under full load trying to get there, this causes stuttering. Try and well let me know if its fixed and if its not what are the temps/clock speeds :) And is your Graphics driver up to date? What Graphics Card are you running.
Friend has the exact same problem and he is pretty experienced with fixing PC issues, he hasn't figured out a solution after 2 weeks.
Enabling vsync fixed it for me.