Hello,

Please go to file js/main.js and find these lines:

function flexsliderInit(){
	"use strict";
	$('.flexslider').each(function(){ 
		var $s = $(this);
		$s.flexslider({
			slideshowSpeed: 6000,
			animationSpeed: 800,

Edit slideshowSpeed value to your wish. Save changes.

Best regards!

Hello,

No you can not find this file from wordpress dashboard. You have to access it via ftp. If you are using a Flexslider in homepage too, then it will be affected as well since they share the same code. But i see you have Codeless slider so it is not a problem.

Best regards!