By default Jump Start responsive toggle (javascript) will be applied for tablets and below. This snippet will change that to mobile and below.

mobile-toggle-start-at-mobile.php

<?php
/**
 * Kick in mobile menu starting at mobile(>768), 
 * instead of tablet (>993)
 */
function my_js_locals( $locals ) {
	$locals['mobile_menu_viewport_max'] = '767';
	return $locals;
}
add_filter( 'themeblvd_js_locals', 'my_js_locals' );