Little Shop of Horrific PC Game Practices

Last time I ranted about the fact that I cannot use my game controller in NFSU:MW.
This time my frustration is about why 512 MB of RAM is not enough for Black and White 2? With this amount, at the third level (island, in fact) the game starts continuously using the hard disk.
Oh yeah, this is not the fault of the game itself: why there is no such a hw and sw solution, which does not slow down, even to a halt sometimes, when something happens on the hard disk?
So the game starts poking at the hard disk, so, the game flow starts clogging in the same rhythm.
Disappointing.

You may think I am really just ranting and complaining... I'm telling you, I will get to a conclusion... keep tuned.