[Tu Tran]

Hi,
Normally, Magento site is slow. Please enable Cache on Admin and try to use module full cache page to increase speed. You can install:
– http://www.magentocommerce.com/magento-connect/pagecache-powered-by-varnish.html
– or http://www.magentocommerce.com/magento-connect/lesti-fpc-simple-fullpagecache.html
Best regards,