assassins's creed 3 is lagging with 1080 ti

[gremlin3378]

i used to play ac3 on my laptop(G750JW) which had a 765m and ran perfectly fine with the occasional stutter here and there. Now, i'm trying to run it on a new pc with a 1080 ti and it seems to be lagging quite a bit and stutters every couple seconds. Even the menu screen was glitching out with a sort of flickering. That was eliminated by turning vsync on but the problem in-game still persists. This problem isn't limited to the Boston area. It's throughout the entire game. I am constantly getting dips in fps a little below 40. I've also tried toying with the in-game setting like shadow quality. Still no noticeable improvement. any ideas?

 

[jitendrad]

Can you tell the model name of your laptop or the specification of it