Anyone have this problem?

Often there is a slight delay on mouse inputs, you click right to bring the sights up and it seems to freeze up for half a second. other times you press right and then left as you normally would and again there is a delay but its also ignored your right mouse click and you end up hip firing which in this game is pathetically inaccurate unless its point blank range, its as if you have a 2 meter wide bullet spread at arms length, its a joke.

Its incredibly frustrating, you see a guy, he sees you and you need to be fast but the game says no, and freezes you out from input just long enough.

I don't have this problem with any other game.

System.

CPU: Intel Core i7 Bloomfield skt 1366 @ 3.8Ghz
Memory: 6GB Tri-Channel RAM @ ~1500Mhz (CPU has a silly locked multiplier, have to OC by FSB)
GPU: AMD 7870XT @ 1150 / 1500

Max GPU temp ~75c
Max CPU temp ~85c (Cores) its a hot CPU.

Game settings.

GFX: all Very High
Texture Res: Very High
AA: None
1920 x 1080

FPS: 40 to 55

Input.

Keyboard: Logitech G110
Mouse: Logitech (just Logitech)

Turn of V-Sync if it is turned on and lower the graphics (resolution can stay on FullHD) to it's possible bottom. Multiplayer is not about graphics, you don't have time to admire the visuals when you are surrounded with enemies.

It's ok for singleplayer, but totally not ok for multiplayer and it's doesn't matter what build you have. You can have a high or a low end build, but you'll always have to lower graphics to gain FPS. High FPS rates means a lot in multiplayer games.

For instance, there was a DLC screenshot competition and I maxed out the game. I had like 30FPS tops and I had a massive input lag. But I don't have it when I'm playing on lowest possible settings.

Try lowering it and let us know if the input lag disappears or not.