Input lag when Vsync is on

[ocococ]

No you can't. Buffers add latency. No way around that.

Simple Vsync is always Double Buffered, which always adds some latency.

Triple Buffered Vsync adds even more latency, but increases and smooths out FPS.



The only thing you can do is get a true 120Hz monitor (eg. good old CRT or some of the new 120Hz gaming LCDs) and run with vsync off. That way you won't have tearing/latency.