I'm using slideshow 2.2.19 by StefanBoonstra in the lower half of my header (http://geoadvanced.com/). It works fine. Here are my settings:
Number of seconds the slide takes to slide in: 6
Number of seconds the description takes to slide in: 0
Seconds between changing slides: 0.0
Number of slides to fit into one slide: 4
I set 4 slides to fit in one slide. I expect the Slideshow starts initial sliding during image loading and the overall sliding speed is 6s per slide (4 images) or 1.5s/image. Is there a way to achieve it? Or will you add another parameter to do it?