How to change speed of rotation in .php file

Question

Here is my testimonials.php file below. I would like to change the speed of the rotation of testimonials, however I am unsure what code to write in. Your assistance is appreciated!

    <?php
/**
 * Testimonials
 *
 */
 ?>
<div class="testimonials sixteen columns alpha omega marT20 marB40 padT40 padB20">
    <?php
        $args = array(
            'post_type' => 'testimonial', 
            'order' => 'DSC',
            'posts_per_page' => 100
        );
        $query = new WP_Query($args); ?>

    <ul class="testimonial-content">

        <?php while ( $query->have_posts() ) : $query->the_post(); ?>

        <li>
            <h5 class="marB8"><?php the_content(); ?></h5>
            <h5 class="marB0"><strong><?php the_title(); ?></strong></h5>
        </li>

        <?php endwhile; wp_reset_query(); ?>

    </ul>
</div>

Answer 1

Judging by the class name, testimonial-content, you're probably using the WordPress testimonial widget. Check out the last setting here:

If you need to change this programmatically, then track down where it's used in the code, somewhere in /wp-content/plugins/testimonials-widget/.