Via：http://icaoye.com/solution-of-wordpress-3-8-google-fonts-issue.html

　　WordPress新版本有时会出现这个问题，就是后台操作的时候变慢了，刚开始以为是服务器问题，仔细分析，是载入字体的时候延时，于是就用开发者工具查看了一下，原来3.9版本的字体使用的是Google FontsOpen Sans，在国内访问不稳定所以会延时，解决方法很简单。
　　直接添加到主题的functions.php中即可禁用后台Open Sans：
//禁用Open Sans
class Disable_Google_Fonts {
public function __construct() {
add_filter( 'gettext_with_context', array( $this, 'disable_open_sans' ), 888, 4 );
}
public function disable_open_sans( $translations, $text, $context, $domain ) {
if ( 'Open Sans font: on or off' == $context && 'on' == $text ) {
$translations = 'off';
}
return $translations;
}
}
$disable_google_fonts = new Disable_Google_Fonts;

官方Twenty系列去除代码：
class Disable_Google_Fonts {
public function __construct() {
add_filter( 'gettext_with_context', array( $this, 'disable_open_sans' ), 888, 4 );
add_action( 'after_setup_theme', array( $this, 'register_theme_fonts_disabler' ), 1 );
}
public function disable_open_sans( $translations, $text, $context, $domain ) {
if ( 'Open Sans font: on or off' == $context && 'on' == $text ) {
$translations = 'off';
}
return $translations;
}
public function disable_lato( $translations, $text, $context, $domain ) {
if ( 'Lato font: on or off' == $context && 'on' == $text ) {
$translations = 'off';
}
return $translations;
}
public function disable_source_sans_pro( $translations, $text, $context, $domain ) {
if ( 'Source Sans Pro font: on or off' == $context && 'on' == $text ) {
$translations = 'off';
}
return $translations;
}
public function disable_bitter( $translations, $text, $context, $domain ) {
if ( 'Bitter font: on or off' == $context && 'on' == $text ) {
$translations = 'off';
}
return $translations;
}
public function register_theme_fonts_disabler() {
$template = get_template();
switch ( $template ) {
case 'twentyfourteen' :
add_filter( 'gettext_with_context', array( $this, 'disable_lato' ), 888, 4 );
break;
case 'twentythirteen' :
add_filter( 'gettext_with_context', array( $this, 'disable_source_sans_pro' ), 888, 4 );
add_filter( 'gettext_with_context', array( $this, 'disable_bitter' ), 888, 4 );
break;
}
}
}
$disable_google_fonts = new Disable_Google_Fonts;

前排

禁用倒不如把字体放CDN再把它链过来

貌似没有css

yahei