Can not Load all Content at home page

Dear Support,

I’ve install with base option theme. basic change like php limit time already setup to 256M but when I open the website like a stack not 100% load the content and perfomance is to slow. I don’t know is’t come from our hosting or internal code. When I open Basel demo is to fast and check on google page speed also good perfomance but inversely with our website.

Thank you for your help.