disable-wptexturize.php

<?php
/*
Plugin Name: Disable Wptexturize
Description: Removes most calls to this incredible slow function.
Version:     1.0
Author:      Thomas Scholz
Author URI:  http://toscho.de
License:     GPL
*/

foreach ( array (
		'bloginfo'
	,	'comment_text'
	,	'comment_author'
	,	'link_name'
	,	'link_description'
	,	'link_notes'
	,	'list_cats'
	,	'single_post_title'
	,	'single_cat_title'
	,	'single_tag_title'
	,	'single_month_title'
	,	'term_description'
	,	'term_name'
	,	'the_content'
	,	'the_excerpt'
	,	'the_title'
	,	'nav_menu_attr_title'
	,	'nav_menu_description'
	,	'widget_title'
	,	'wp_title'
	) as $target )
{
	remove_filter( $target, 'wptexturize' );
}