How to Optimize with huge loading time difference

Hi,

My webpagetest results varies widely from 3.5s to 11.9 seconds. I am very lost on how to go about rectifying it.

Anyone can give me some pointers???

Your kind advice is greatly appreciated!!!

Best regards,
abc

Do you have sample test results? Seeing what part of the page is responsible for the large variation will help guide you where to look.