Vsyn = Vertical sync. If you experience screen tearing (GPU sending new image to screen before previous image is finished) this can rectify the issue, It is recommended not to use it unless absolutely necessary as it can adversely affect frame rates.
Vignetting - a slight darkening around the edges of the on-screen scene. Purely for aesthetic purposes only.
Adaptive Lighting - the lighting in the game adapts to your location. ii.e. - brighter in middle of fairway, darker when in the woods where there would be less light getting through. Again for aesthetic purposes.
Intel i5-4570 cpu @ 3.2 GHz, ASUS Z74-K mb, ASUS GeForce GTX 960 gpu, 16 GB ram, 2 x SSD drives, Windows 10 64 bit
Steam name: sound_flier