<p>The time-delay may be partly the amount of time it takes to populate the slide controller slide previews if it has lots of images. If you blank the screen after the previous item you can then go live on the PPT in advance, and unblank when ready... however if it's timed, you may need to experiment to see if it'll auto-advance OK like this.</p>
<p>Within PowerPoint itself, if you click on an image you will have an option somewhere to offer to compress all the images to a suitable screen-resolution (this option is in a different place depending on version of PowerPoint). This might help the loading speed.</p>
<p>Also if its auto-advancing and you don't need the benefit of OpenLP to preview the slldes, it may just be as easy to stick it on the desktop and just run it outside OpenLP!</p>
<p>Finally if you want a slideshow of just images, you could try v2. Here you can import a load of images. Select them all and add them as one item to the order of service, and then use the timed slide option in the slidecontroller. (But then since you needed it today and the service may well be over, probably a bit too last minute for this! :)</p>