most of the games i played during console time are FPS
and yes.. INPUT LAG is noticable..
when i play with
lg plasma + ps3 resolution full HD = noticable
led samsung + ps3 resolution full HD = really2 noticable
lg plasma + the lowest ps3 resolution setting + game mode = movement very fast and accurate
led samsung + the lowest ps3 resolution setting + game mode = movement fast and accurate
if u play alot of FPS u will notice, even it's just between few milliseconds
input lag is there la..
heck to make it noticable, u try playing the Bad Company 2 in Samsung LED 52inch dont turn the game mode, the play at ur PC monitor..
u will feel the movement in PC monitor will be much more lighter and accurate..
bluff u not mang

Added on July 7, 2012, 6:53 amit wont reduce much..
if u want the maximum less lag input..
play game in Game Mode, then set your ps3 display setting to use the lowest resolution there is..
picture will be like shits..
but movement will be damn smooth and accurate..
i played BF3 at Metro by doing that..
owning all the time..
then after so log watching picture like shit in low res, decided to play on PC..
amik kau full HD, ultra settings, no lag input shit whatsoever

trying to get the button pressed as accurate as the one displayed on tv... luckily the game has the settings to adjust (auto/manual) in regards to the display's input lag with the music instrument (for flawless play).