8
You have three items in your site pointing to other servers. If these servers are slow, they might slow down your site as well.
http://www.google-analytics.com/urchin.js
http://www.indianbloggers.com/tracker.php?do=in&id=1351
http://www.blogtopsites.com/tracker.php?do=in&id=13541
And no, you should NOT activate the automatic updating. Did you try caching a few things like not often updated blocks and modules?