Add MIME type and Expires Header to Favicon
Add these lines to your .htaccess file to speed up favicon loading, as specified by the Yahoo Yslow documentation.
# Add Proper MIME-Type for Favicon
AddType image/x-icon .ico
# Enable Apache's mod_expires Module
ExpiresActive On
ExpiresByType image/x-icon "access plus 1 month"
Other ways to speed up loading times are by:
loading mootools directly from google
Stopping mootools from loading