Not Mobile Friendly site

[sukesh]

i am working on a website named topcottonbags http://topcottonbags.com. when i checked in google pagespeed insight it gives very low score in mobile speed. how can i improve the speed of the website. do suggest improvements for my website.

[submit]

The easiest way is to reduce image sizes, but there could be numerous other issues that are not easy to fix and would need an expert developer.