Snow Leopard running slow after installing Windows

Hi there!

I just installed Windows 7 Professional 64 bits using Boot Camp. But when I tried to use Snow Leopard again, it runs slow. By slow I mean that, for instance, Spotlight takes a long time to do the searching and before installing Windows it was almost instantly.

This is the data I get from iStat nano (I don't understand it completely but I think RAM is OK, the inactive field is the one why I have this doubt):

RAM

Wired: 1.30 gb Used: 3.90 gb
Active: 2.60 gb Free: 95 mb
Inactive: 3.99 gb Swap: 256 mb

 

Thanks, I just did that

But it's not only Spotlight. I open Finder and it takes a couple of seconds to do it. Same thing with other applications...