Hi, Sorry for this inconvenience. For these need to modify the “assets/js/active.js” file. Please go to this “assets/js” folder and open active.js with a text editor. Then find your specific slider or carousel activation class. Then add “speed” parameter.
Example: For “.testimonial-content-landing” activation.
Note: you can find any options or parameter for any carousel of Arden template here: http://sachinchoolur.github.io/lightslider/settings.html