[libreoffice-users] Consistently poor Impress performance in Mac OS X

Hello,

This is a question I asked in ask.libreoffice.org, but did not get a useful
reply:

I've got the latest Impress running on my MacBook Pro with Mac OS X 10.6.8.
(but this problem existed in previous versions, too)

For the past few months I tried really really hard to make all my
presentations with Impress. The big problem is that it's performance is the
exact opposite of snappy. (what is a good antonym for snappy?)

After adding images (they are each just 500-800kb JPGs) to, say, 20 slides,
Impress grinds almost to a halt. Things respond 1-2 seconds after the mouse
click.

This is especially frustrating when clicking, holding, the dragging, because
there is always a 1-2 second lag between each step. For instance, if I click
and drag the corner of an image to resize it, the motion is not smooth, but
rather occurs in "jumps". Another instance would be when I click on a slide
to select/show it in the main window. If I move the mouse cursor away after
clicking on a slide, the lag makes Impress think I am dragging and
re-ordering the slide! And of course there is a few seconds delay here as
well.

So my question is: What's wrong that's making Impress perform so poorly?? My
Mac has a Intel Core i7 2.66 gHz CPU, advanced Nvidia GT 330M graphics, and
8.0 GB of memory, it should be overkill for something like this! I tried
tweaking the number of objects kept in memory, size of objects, etc. to no
avail.

Is it just because Impress has poor performance? (in which case I think it
really need to be improved) Or am I doing something wrong??? M$ PowerPoint
and Apple Keynote works beautifully and snappily, but I wish I could use
Impress!

Thanks!

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