you might forget about lowering your resolution, i think.
you will most likely gain a few frames per second at the cost of a great loss of picture quality if you run a lcd monitor in a resolution other than the genuine.
22" means you have to stay with 1680x1050, i say.
__________________
Win 7/64 Ult.; Phenom II X6 1100T; ASUS Crosshair IV; 16 GB DDR3/1600 Corsair; ASUS EAH6950/2GB; Logitech G940 & the usual suspects
 
|