The stutters usually come from pagefile size change "on the fly" when set on Auto...
I have pagefiles always on fast drives, fixed size, double the size of available RAM...
There were times, in Windows 7 and Core2Duo era, when DCS was not such a hungry beast, when I kept a minimal pagefile in a dummy "Ramdisk" inside RAM, for the sake of Windows memory usage logic...
I think the only true solution is 32GB of RAM, as of now...