In the Parabola Settings > Presentation Page > Slider Settings, you can change both the length of time each slide is visible and motionless, and the speed of whichever animated transition you’ve selected.
edit: Sorry, that’s using the slider built-in to the Parabola theme.
Hmmm I’m not sure which I’m using but I think it’s the default in WordPress. That’s only for the presentation page itself right?
Not even sure what that does!
Yes, sorry – as far as I know, the slider built into the theme can only appear on the Presentation page.