<p>What are your theme settings like? Are you using a back ground image? If so, you might like to try resizing it to the resolution of the output. I'm not sure if OpenLP does this automatically or not?</p>
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<p>Secondly, try using the keyboard to change slides then the mouse, is there a difference? I've got a theory (that I havnt had time to test out yet) that there is a slight delay when using the mouse as it waits to see if its just a single click or a double click. So if you've got a longer double click delay, this may add a slight delay to the changing of the slide. (admitedly not 2-4 seconds, but it all helps!) If anybody else could test this and confirm, maybe the dev's could change to an onKeyDown event, rather than keyRelesase?</p>
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<p>What OS are you using? I have always found OpenLP to be slower on windows than on Ubuntu.</p>
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<p>What hardware are you using? One of our laptops at church (win xp) and a lot lower spec than mine (going on age) actually workes faster than my lot newer laptop (win 7)</p>
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<p>Phill</p>