Actually software rendering plugins are likely to use much less memory than hw accelerated ones.(y'know, using soft plugins uses up system resources and until i can get more ram its bloody slow.)
If you want better speed you should get a faster CPU, provided that you have enough RAM (128MB) to avoid too much virtual memory disk swapping.
ehe I haven't been testing fskip for a long time. Infact I almost got rid of it.as with kazz soft being slow, well, i would us it if the frameskip option was a little more compatible (like in petes plugins)
I'm curious.. what CPU do you have ?