VERY SLOW BUT ONLY WHEN USER IS LOGGED IN!

I need help in a bad way!

http://www.starztv.net is my site.  I used http://tools.pingdom.com/fpt/ and http://gtmetrix.com/ to test my site. There are several suggestions but I have very little experience doing this. Can someone tell me why the dolphin site would be SO slow but only when users are logged in?

Thank You!

Logged in users have more features available to them, like the member menu (with high-tech Ajax action!).  Try adding browser caching; for Apache users, add this to the bottom of the .htaccess file in Dolphin's main directory:

<IfModule mod_deflate.c>
    # Insert filter
    SetOutputFilter DEFLATE
    <IfModule mod_setenvif.c>
        # Netscape 4.x has some problems...
        BrowserMatch ^Mozilla/4 gzip-only-text/html
        # Netscape 4.06-4.08 have some more problems
        BrowserMatch ^Mozilla/4.0[678] no-gzip
        # MSIE masquerades as Netscape, but it is fine
        BrowserMatch bMSIE !no-gzip !gzip-only-text/html
        # Don't compress images/archives/music/video/etc
        SetEnvIfNoCase Request_URI .(?:gif|jpe?g|png)$ no-gzip dont-vary
        SetEnvIfNoCase Request_URI .(?:exe|t?gz|zip|bz2|sit|rar)$ no-gzip dont-vary
        SetEnvIfNoCase Request_URI .(?:avi|mov|mp3|mp4|rm|flv|swf|mp?g)$ no-gzip dont-vary
    </IfModule>
    <IfModule mod_headers.c>
        # Make sure proxies don't deliver the wrong content
        Header append Vary User-Agent env=!dont-vary
    </IfModule>
</IfModule>

<IfModule mod_expires.c>
    # enable expirations
    ExpiresActive On
    # expire images/css/js/swf files after a month in the client's cache
    ExpiresByType application/x-shockwave-flash "access plus 30 days"
    ExpiresByType text/css "access plus 30 days"               
    ExpiresByType text/javascript "access plus 30 days"        
    ExpiresByType application/javascript "access plus 30 days" 
    ExpiresByType application/x-javascript "access plus 30 days"
    ExpiresByType application/x-gzip "access plus 30 days"                                      
    ExpiresByType image/gif "access plus 30 days"
    ExpiresByType image/jpeg "access plus 30 days"
    ExpiresByType image/png "access plus 30 days"
    ExpiresByType image/x-icon "access plus 30 days"
    ExpiresByType image/vnd.microsoft.icon "access plus 30 days"
</IfModule>

From: http://www.boonex.com/trac/dolphin/wiki/HostingServerSetupRecommendations

do you have DNS Block lists enabled? That made my site dreadfully slow a couple weeks ago just for logged in users. admins were unaffected. Disabled it and it works great again.

One thing that I did to speed up my site is run ALL my css thru this site.

http://refresh-sf.com/yui/#output

It removes all the blank spaces and optimizes the heck out of the CSS!

Be carefull if you do you javascript files tho!  Most of them compress fine, some will not. 

I went from like a 56 to an 84 on one site's score just from compressing all the CSS files.

I suspect that it maybe relates to recent global DDOS attack, which affected some global networks.

Try to temporary disable sbl.spamhaus.org. rule in DNSBL rules in Admin Panel > Tools > Antispam Tools.

Actually www.spamhaus.org was under attack (and maybe still) and this most probably caused such delays.

 After days and days this solved my problem.  Thank you sir. I was ready to throw my website in the trash.

:)