Limited graphics options

my graphics option look like this. i’m trying to disable vsync as my 75hz panel is just pulling 37.5 may it be low details/high details settings. please help. i really need to disable vsync or at least set it to dynamic. i’ve googled around and even searched this site and i’ll got is an error message.

systems specs:

i5 3450
gtx960 2gb
8gb ddr3 1600mhz
the game is on a dedicated ssd for gaming.

quick tip, you can make “Dynamic Optimization” custom to change the graphic settings