UPDATE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I found the culprit of low FPS and stutters on my system. HPET, disable HPET and there's a good chance that your stutter or low fps problem will go away.
To disable run a cmd as administrator and type:
bcdedit /deletevalue useplatformclock
bcdedit /set disabledynamictick yes
Reboot
Test that your stutter/low FPS problem is gone.
