Website loading speed is important factor when it comes to Ranking. Google obviously down your site if your web pages are taking time to load when some click on your website from google search result. -Caching Your Pages To Serve Static Content -Optimizing your homepage to load quickly -Optimizing your WordPress database -Control the amount of post revisions stored -Utilizing browser caching There will be nothing change in your website frontend. By using some simple technique i will optimize your speed upto 100%.