I'm currently playing assassins creed black flag on my pc at 720p. At preset (default high settings) at which the game is playable but i'm not satisfied so i want it to be more smoother but the problem is that when i try to lower the graphics from in games settings .....they seems to have no effect on the game..its like if i lowered the shadow level to none and switched off the motion blur ........they're still there in the game.....does anyone knows how to fix this..i am pretty sure about my rig and it has potential to run this game on 720p at high settings...so rig isn't the concern here...please help me so i can play this game more smoothly on lower settings at 720p..if there's any patch or fix for this please attach a link ....thanx in advance.