WordPress speed up performance plugin comes with 20-speed optimization features which will help you to improve your on-page load time and will also assist you in improving your Google Page Speed Scores.

Currently, these are the features which are supported:

Compress HTML (HTML5 Supported)

Remove Query Strings From JS, CSS, Fonts & Gravatar Profile Images

Optimize Heatbeat API For Best Performance

Optimize & Enable CDN For Font Awesome Styles

Remove WordPress Shortlink

Remove Adjacent Posts Links

Remove Windows Manifest

Remove The WordPress Version

Remove All Rss Feed Links

Combine & Minify Extenal JS Files

Move Scripts To The Footer

Defer Parsing Of Javascript Files

Load JS From Google Libraries

Load CSS Asynchronously – Inline CSS (Dramatically Improves Page Load Time)

Minify All Inline CSS Styles

Insert All CSS Styles Inline To The Footer

Disable All Above CSS Options On Mobile Devices

Add Expires Header

Lazy Load Images To Improve Speed

Customize WordPress Default Image Compression Level. This Option Will Only Work For New Image Uploads.