The Paging File is best left enabled. What i'd recommend, though, is to manually configure the Page File. Rather than leaving it to dynamically change/modify, try do the following:
Minimum Size = 1.5x RAM (i.e 2GB of RAM = 1.5x2048 = 3072MB)
Maximum Size = 2x RAM (i.e 2GB of RAM = 2.0x2048 = 4096MB)
So multiply your RAM by 1.5 (one and a half) for the minimum page file and multiply your RAM by 2.0 (two

) for the maximum page file.
I've been using this combination for the longest time and it definitely has some performance gain...not necessarily in FPS, but overall system performance.
r2rX