Any FPS you get over what your monitor is capable of isn't doing anything for how smooth it will be. The idea of Gsync was/is for the display to show what your GPU can put out up to it's refresh rate and do it nice and smooth. If you're not using Vsync or any other frame capping method, then try setting your game profile in the NVCPL to "Fast" in the Vsync section. That may help.
My score is much higher compared to yours because my core clock was running between 2082 and 2095MHz. It started out a bit above 2100 until I hit 55C then dropped a bit. My memory was OC'd to a +250 if I recall. I don't OC my GPU while gaming however.
Also, your score shows it better than 95% or other comparable setups...