The changes are not difficult and do seem to have an effect. We can't be certain how much this will affect the functionality but we pass these ideas on.
Both changes involve going into the Tools and then options management sections. In the memory dialogue box, increase graphics cache to 64MB and memory per object to 8MB. It will take Open Office a few openings before this helps.
The other is to go to Java options and disable them. Apparently in the time it takes Open Office to open Java, you can go and make a cup off coffee, go to the loo, read the online newspaper on your thin and light and return to your desktop. ยต
Well, in your benevolent search for fairness towards "open-sauce", as you so weirdly put it, you let yourselves (the Inquirer) fall into pure stupidity. Please allow me to explain myself: I have a considerate amount of confidence that most, if not every one, of you folks is familiar with the concept of modern OS's caching load-time files from programs. So, I will admit you (and everyone who has any clue what I'm writing about) consider OpenOffice one of those "blessed" programs. Now to what you stated: "It will take Open Office a few openings before this helps". Well, other than understanding that what you attempted to say was something around "Load and close the program a bunch of times" I feel strongly compeled to say "you guys lost your mind". This situation altogether leads me to yet another (sad) conclusion which is that the Inquirer is NOT impartial on it's judgments. I'm sorry if everyone already had that impression (and therefore feeling the urge to call me naive) but for me was a first. Minus one point for the Inquirer.
i suggest a real method to increase performance of OpenOffice. the only way out is DOCK TO TRAY. by using kdocker or alltray.

but there is a difficulty. in manual mode (when you by using mouse indicates window) kdocker succesfully kick openoffice window to tray, but through command line it did not work by default. the solution is to define window ID of opened OpenOffice window and transfer it to kdocker.

here is script that you need put in $HOME/.kde/Autostart/office-to-tray.sh


#!/bin/bash

/opt/openoffice.org2.4/program/scalc -norestore &

sleep 15

/usr/local/bin/kdocker -w `/usr/X11R6/bin/xwininfo -root -children -tree | /bin/grep "OpenOffice.org Calc" | awk '{ print $1 }'` &

/opt/openoffice.org2.4/program/swriter -norestore $HOME/.1.doc

sleep 5

/usr/local/bin/kdocker -w `/usr/X11R6/bin/xwininfo -root -children -tree | /bin/grep ".1 - OpenOffice.org Writer" | awk '{ print $1 }'` &

and you need put small simple .1.doc file to $HOME.

the result: celeron 1800,512Mb,FC4,icewm , xls file 450kb open for 4 seconds!