Load Full CSS on Scroll on specific pages only

/**
 * Plugin Name: Swift Performance Tweaks
 * Load Full CSS on Scroll on specific pages only
 */

add_filter('swift_performance_option_load-full-css-on-scroll function($value){
    $pages = array(
        '', // use empty for homepage
        '/page-1',
        '/another-page',
    );
    if (isset($_SERVER['REQUEST_URI']) && in_array(parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH), $pages)){
        return 1;
    }
    return $value;
});