Slow TTFB on GoDaddy

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After moving my website to GoDaddy (per client's request), I'm experiencing extremely slow Time to First Byte (TTFB). I've read a lot about TTFB and have made these changes to my .htaccess file. Is this something that is on GoDaddy's end? I've contacted support and they claim they notice no problems on their end, but I just submitted a traceroute for further investigation. If someone would be willing to help me diagnose, I would truly appreciate it!

URL in question:http://www.mozingolake.com

addhandler x-httpd-php5-cgi .php5
addhandler x-httpd-php-cgi .php4
addhandler x-httpd-php5-cgi .php
# -- concrete5 urls start --
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule .* index.php [L]
</IfModule>
# -- concrete5 urls end --
# set browser caching
ExpiresActive On
ExpiresByType image/gif A604800

cramaekers