add code in functions.php will slow down the Execution speed?

I　put these code in functions.php to custom what I need.

before I add these code,the back_end`s ttfb is 746ms.

after adding,the ttfb is 3.6s !!!

speed becomes slow obviously!

Is there any way to optimize ?

**//back_end footer text**
add_filter('admin_footer_text', 'left_admin_footer_text');
function left_admin_footer_text($text) {
        //left text
        $text = '';
        return $text;}
add_filter('update_footer', 'right_admin_footer_text', 11);
function right_admin_footer_text($text) {
        //right text
        $text = "Power by Ateam";
        return $text;}

//Logo
s URL
function my_loginURL() {
    return '#';
}
add_filter('login_headerurl', 'my_loginURL');

//login page logo text
function my_loginURLtext() {
    return 'Powered by Ateam';
}
add_filter('login_headertitle', 'my_loginURLtext');

//hide the back_end logo
function annointed_admin_bar_remove() {
        global $wp_admin_bar;
        /* Remove their stuff */
        $wp_admin_bar->remove_menu('wp-logo');
}
add_action('wp_before_admin_bar_render', 'annointed_admin_bar_remove', 0);

//hide the hlep tabs
add_filter( 'contextual_help', 'wpse50723_remove_help', 999, 3 );
function wpse50723_remove_help($old_help, $screen_id, $screen){
$screen->remove_help_tabs();
return $old_help;
}

//stop the update notice (Core)
remove_action ('load-update-core.php', 'wp_update_themes');
add_filter( 'pre_site_transient_update_core', create_function( '$a', "return null;" ) );

//stop the update notice(Plugins)
remove_action( 'load-update-core.php', 'wp_update_plugins' );
add_filter( 'pre_site_transient_update_plugins', create_function( '$a', "return null;" ) );

//stop the update notice (Themes)
remove_action( 'load-update-core.php', 'wp_update_themes' );
add_filter( 'pre_site_transient_update_themes', create_function( '$a', "return null;" ) );

//stop the update (theme)
add_filter( 'auto_update_theme', '__return_false' );

//stop the update (plugins)
add_filter( 'auto_update_plugin', '__return_false' );

//stop the back_ends notices
function pr_disable_admin_notices() {
    global $wp_filter;
      if ( is_user_admin() ) {
        if ( isset( $wp_filter['user_admin_notices'] ) ) {
                unset( $wp_filter['user_admin_notices'] );
        }
      } elseif ( isset( $wp_filter['admin_notices'] ) ) {
            unset( $wp_filter['admin_notices'] );
      }
      if ( isset( $wp_filter['all_admin_notices'] ) ) {
            unset( $wp_filter['all_admin_notices'] );
      }
  }
add_action( 'admin_print_scripts', 'pr_disable_admin_notices' );

• This topic was modified 7 years, 2 months ago by 凱寧.
• This topic was modified 7 years, 2 months ago by bcworkz. Reason: code fixed