I got the stuttering fixed for good and it aint the Nvidia drivers,I am using the latest drivers.
I don’t even know what fixed it but I
Changed my Power settings to High Performance.
Removed Synapse ,A Razer software that hangs in the background.
I removed anything in Task Manager that started up with the PC that I did not need.
I removed a bunch of stuff,I saw the Chrome Browser leaves alot of stuff in the background,so I uninstalled Chrome from my PC.
Anything that starts up in Task Manager and sits in your tray at the bottom right of the screen,think about uninstalling those.
I had Gog Galaxy and EA stuff starting up in the background.
In the Game,I set the res to my native monitor res and I have Unlocked (vsync) set.
Before ,I was getting an average frame rate of 90 but it fluctuated between 90 and 50 and 110 and stutters galore.
Now,I am getting frames from 99.5 to 100,butter smooth.
I never changed my Cpu cores or went back to older drivers.
I wish i knew what setting fixed it lol.
I also have 4 sticks of ram in my PC ,so I bumped up the voltage from 1.36 to 1.37 up .2 from rated voltage in the bios.
I also bumped my SOC Voltage up by 0.05. from 1.01 to 1.06.
i was amazed when the game finally run as it should.
Try setting your power to High Performance and see if that works.
I reckon it may have been the Chrome Browser.
I know my Synapse software was flaky.
But look at anything running at start up in task manager,be careful not to remove anything required by Windows 10.