Suggestion for a WM on a slow machine

[Davide Anchisi <davide.anchisi@unito.it>]

Hi,

I have a slow machine (486, with 16 Mb of RAM) and I'm trying to keep as
faster as possible. Working in command line mode I've no problem, but in
X ...
So I'd like to know what's the better choice for a window manager on a
system like mine.
Now I'm using twm. Are fvwm2 or BlackBox faster? Or what else?

Thank you for sugestions.

    Davide