Thank you very much Unsanity.
I tested it on a PowerBook G4 "Ivory",
with Mac OS X 10.4.6, and I already
tweaked everything so that it runs as
fast as a G5 Double Core.

And this hackie even improved it more,
this is unbelievable, but true,
all my windows open twice as fast.

To the previous authors:
Please do not consider loading of
the contents of a window as part
of the loading time, because this
is not the part of the core image processing,
but depending on the system processes
and of course the dozens of contents.

This does really improve everything.

And I must say, that it does not look
ugly, instead it looks clearer to me.

Thanks!!

does what its supposed to do... especially on older macs running OSX

i recommend putting it in the startup items / hidden.

It makes it difficult to distinguish the edges of windows. A good solution would be if the windows could just have a solid border (rather than no border).

doesn't really speed things up but MAN does it make things look UGLY