Pamekleeju un atrado kautk o ssaadu - - Slow or laggy mouse. Repeat the above steps of disabling, enabling everything, and turning it back on
bit by bit until you find the problem. Often in game AA and/or Postfilters is the cause of this lag. Also, check
the "max frames to render ahead"-tweak below. Another thing to try is to disable Trippel buffering in your
nvidia or ati control panel, under 3d settings. Finally, reducing the Texture resolution settings ingame might
help a few.

nnemts no ssejienes - http://www.hitmanforum.com/forum/index.php?showtopic=31839
Riktiigi nesaprotu ko vinni no manis veelas :D pa Max frames un pa 3d settingiem !