With driver 388.31 Nvidia is claiming up to a 53% performance increase in Destiny 2, I'm not sure I'm seeing that. I turned off ambient occlusion in the nvidia control panel and AA in game and that gave me a few FPS. They're showing an average of 73 FPS at 4k with a 1080 Ti, in heavy action scenes FPS can dip into the 40's.
I like how the boss changes colors from purple to orange to blue.