Page Speed is extremly slow when a user is logged in

Hi,

The Page Loading Speed is really fast when no user is logged in but when a user is logged in (no matter if it is admin or not) the loading speed of the homepage is extremly slow. Also the login process and the logout process is slower than on other sites I own.

I disabled every plugin but that doesnt help.

http://allsocial.at/fitsta/

Is there anything I can do? thx

Here my .htaccess:

<IfModule pagespeed_module>
ModPagespeed on
ModPagespeedEnableFilters collapse_whitespace
ModPagespeedEnableFilters remove_comments
ModPagespeedEnableFilters rewrite_images
ModPagespeedEnableFilters insert_dns_prefetch
</IfModule>

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /fitsta/
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /fitsta/index.php [L]
</IfModule>

# END WordPress

<IfModule mod_filter.c>
<IfModule mod_deflate.c>
AddOutputFilterByType DEFLATE text/plain text/html text/xml text/css text/javascript
AddOutputFilterByType DEFLATE application/xml
AddOutputFilterByType DEFLATE application/rss+xml
AddOutputFilterByType DEFLATE application/javascript application/x-javascript
</IfModule>
</IfModule>

SetOutputFilter DEFLATE

# BEGIN Expire headers
<IfModule mod_expires.c>
ExpiresActive On
ExpiresDefault “access plus 5 seconds”
ExpiresByType image/x-icon “access plus 2500000 seconds”
ExpiresByType image/jpeg “access plus 2500000 seconds”
ExpiresByType image/png “access plus 2500000 seconds”
ExpiresByType image/gif “access plus 2500000 seconds”
ExpiresByType application/x-shockwave-flash “access plus 2500000 seconds”
ExpiresByType text/css “access plus 700000 seconds”
ExpiresByType text/javascript “access plus 700000 seconds”
ExpiresByType application/javascript “access plus 700000 seconds”
ExpiresByType application/x-javascript “access plus 700000 seconds”
ExpiresByType text/html “access plus 600 seconds”
ExpiresByType application/xhtml+xml “access plus 600 seconds”
ExpiresByType font/truetype “access plus 2500000 seconds”
ExpiresByType font/opentype “access plus 2500000 seconds”
ExpiresByType application/x-font-woff “access plus 2500000 seconds”
ExpiresByType image/svg+xml “access plus 2500000 seconds”
ExpiresByType application/vnd.ms-fontobject “access plus 2500000 seconds”
</IfModule>
# END Expire headers

• This topic was modified 11 years by Alin [tagDiv].