Magento configuration 1. let Magento put session data in database instead of files. Part of configuration to do that in local.xml </resources> <session_save><![CDATA[db]]></session_save> </global> 2. use global attributes for products if you dont need per view attribute values (admin -> attributes) 3. enable APC or Memcache cache backend and of course enable caching in admin -> cache management 4. enable Mage_Compiler [...]