On G750JX, i use the following settings:
-1920x1080p resolution
-vsync off
-ubersampling off
-antialiasing off
-all other settings enabled and max out
-maximum processor state set to 95% (no turbo boost)
i get around 40 fps average. Very demanding scenes drop the frames to about 30 fps and less demanding ones increase up to 50 fps. All in all, the game is playable at least on this laptop. For G750JW, try lowering your screen resolution to about 1600x900