I have practically given up with this game, although I still play it once in a while with a friend.
Performance wise I always run the game at 1920x1080 with the setting's set to "Very Low" except AA and View Distance which are maxed out, and on the 980Ti I would be running at anything from 80fps to 144fps, and my pc would be getting hammered to do that, 100% usage on the GPU and around 50% usage on the CPU.
Now with the 1080Ti the same setting's the game runs mostly at 100fps to 144fps with consistent drop's down to the high 40's, and the usage on the GPU and CPU are both at around 50% usage.
The game still felt somewhat smooth but the issue's for me was simply the networking and cheating.
The amount of times I would be shooting at someone only for them to take no damage and kill me, when my friend shoot's them with a single bullet and they die since according there client the player had practically no health.
Then there are the macro users and people who are just simply using wallhacks and aimbots etc.
If they actually manage to get the performance and cheating sorted then it will be a good game but until then I am practically done with it, other than a game or two a month to check on how it is.