Please try the following and REPORT: I am curious.
Type "RenderDevice.TripleBufferingEnable" in the console then false. It is true by default.
I suppose it defaults to a double buffer.
I gave a ryzen 1600x with a GTX 1070 and play at 60 fps. Howveer, there is always the odd off drop to 59fps or 58fps with the associated stutter (CPU and GPU usage low) whatever the settings. Ihave tried all the various settings in the Nvidia Control panel, the console commands etc but that one seems to actually do something for me.
I tried it with renderhead 1 and 3. 3 works better for me. Not only do I seem to have less stuttering but it also seems more responsive.
Please do not disregard, try and report. I am just curious to see if it is a placebo or if it helps. I assume to should work for any 60Hz, 120hz etc...