Hi @fluenta,
You can turn off the autoplay option or navigation buttons via backend settings of this JA Slideshow Lite module.
To change the interval of slideshow, you can open the file:
At approx line 129, look for this snippet of code:
<script type="text/javascript">
window.addEvent('domready', function(){
window.jassliteInst = window.jassliteInst || [];
window.jassliteInst.push(new JASliderCSS('ja-ss-<?php echo $module->id;?>', {
interval: 5000,
duration: <?php echo ($type != 'custom' ? '1000' : '2200'); ?>,
repeat: true,
autoplay: <?php echo $autoPlay;?>,
navigation: <?php echo $showNavigation;?>,
thumbnail: <?php echo $showThumbnail;?>,
and change value for interval (miliseconds)