How do I change the length of time each testimonial is displayed for

On a website I am building I am using the testimonial widget at the bottom of the landing pages.
The testimonials are 1 to 2 paragraphs long which is more text than can be read in the amount of time each testimonial is displayed for.

How can I increase the length of time each testimonial is displayed for on the homepage

I am using:
Wordpress 4.7.3
Shapely 1.1.2
and all plugins are updated to their most recent versions

Thanks!