On some computers OOo 2.0 is very slow to show fontworks.
I refer my experience to several computers, for example problem is very heavy on
systems like this: 
Compaq Evo Pentium 4 at 1.5 Ghz, RAM 384 MB, graphic adapter Nvidia Vanta with
16 MB.

Once you have opened a document (e.g. text document) with a fontwok inserted
page scrolling is almost impossible, you see the fontwork very slowly re-drawed
on any scroll of the page and the document become almost totally unusable.

I solved converting the fontwork to a standard image (png or jpg) but it's only
a workaround, not a solution. Maybe fontworks use a lot of video memory, so a 16
MB graphic adapter has difficulty to show them.
Do really fontworks uses so lot of memory that a system like this cannot work
property with them ?
Is there any other workaround to solve this problems on older pcs, for example
some special settings in the general options related to graphics/memory ?