Disable on mobiles and tablets

I’ve found a solution: I’ve installed mobble as a plugin in my theme, then added this code

function kivangi_deregister_supersized() {
    wp_deregister_script( 'WPSupersized_standard' );
    wp_deregister_script( 'WPSupersized_theme_js' );
    wp_deregister_script( 'WPSupersized_core' );
}

to my custom functions and this

if (function_exists('is_mobile')) {
    if (is_mobile()) {
      kivangi_deregister_supersized();
    }
  }

in my script.php file, where I register and enqueue all javascripts and stylesheets.

Also I suggest removing the theme stylesheets, just add this

wp_deregister_style('supersized');
 wp_deregister_style('supersized_core');
 wp_deregister_style('supersized_flickr');
 wp_deregister_style('supersized_theme_css');

to your custom function.