Site Rendering Slow

[Renz]

Hi There

I am trying to get to the bottom of sudden slow loading...of my site. Please note this is an adult toys site. www.adulttoys4u.com.au

Changes: Recently I have added 2 Thousend products, changed a couple of the CSS padding, added a few banners and someone installed an SEO rewrite module (not from the zen cart free software).
I have tried clear the cache, I have changed templates, I have disabled all side boxes, I have disabled all banners. The problem still occurs, apparently it's worst in Opera but IE will show it as well, the page is slow to render and will flicker when loading, it will also do it in the admin section.
Is it at all possible that the SEO rewrite is causing this slow speed, the following is a copy of my .htacess.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^shop/(.*)$ /$1 [R=301,NC,L]
RewriteRule ^index.html$ index.php
#
RewriteCond %{SCRIPT_FILENAME} !-d
RewriteCond %{SCRIPT_FILENAME} !-f
RewriteRule (.*) m1_seourls.router.php
RewriteCond %{SCRIPT_FILENAME} -f
RewriteCond %{SCRIPT_FILENAME} .*\.php|/$
RewriteCond %{SCRIPT_FILENAME} !download\.php
RewriteRule !/ m1_seourls.router.php

ErrorDocument 401 /401.html
#
</IfModule>

----------------------------------------------------------------------
Server Information
Server Host: alpha (127.0.0.2) Database Host: localhost (127.0.0.1)
Server OS: Linux 2.6.27.7-9-default Database: MySQL 5.0.67
Server Date: 03/02/2012 12:14:58 Database Date: 03/02/2012 12:14:58
Server Up Time: 12:14pm up 4 days 16:28, 1 user, load average: 0.93, 0.87, 1.09 HTTP Server: Apache/2.2.10 (Linux/SUSE)
PHP Version: 5.2.14 (Zend: 2.2.0) PHP Memory Limit: 256M PHP Safe Mode: Off
PHP File Uploads: On Max Size: 100M POST Max Size: 100M
Database Data Size: 11,323 kB Database Index Size: 3,226 kB


Not sure where to continue looking, your input would be greatly appreciated.

Many Thanks
RR

[nigelt74]

What do you think of as slow?


as it seems fairly quick to me

Parse Time: 2.028 - Number of Queries: 1824 - Query Time: 0.49289601670837

that was going to the condoms page

[Renz]

Do you see any flickering when calling pages?
Do you see the page distorting randomly (pls see picture)

Cheers
Renz

[DrByte]

You said you're using v1.3.8a. That means YOU NEED TO UPGRADE A.S.A.P. Your perceived slowness could be a result of damage done to your site by malicious visitors. Maybe now, or maybe not yet. But if you don't upgrade, it's just a matter of time.

Once you've upgraded, then these articles become relevant:
http://tutorials.zen-cart.com/index.php?article=21
http://tutorials.zen-cart.com/index.php?article=287