While you're still in PowerPoint, before you publish, Select
the Presentation Settings option under Breeze from your alt bar. On
the "settings" tab is an option to set how long the slides will
wait (default is 5 seconds, and setting to 0.0 results in a playbar
issue, so I suggest 0.1 seconds). Keep in mind you probably also
want to change each slide to "advance by user", which is a checkbox
under "Slide Properties" for each slide.
v/r
Marc B