Select this option to generate HTML Noscript tags for audio and video files so that they continue to work when javascript is disabled. However, the extra html tags generated will fail the validation of the W3C HTML validator (http://validator.w3.org/).
Convert the font size used in the Text / Table Editor to corresponding pixels. When font size is set on the text using the drop down menu, only sizes of x-small, medium etc can be selected. Select this option to convert for example from medium to 16px.
Compress the published images of type JPG and PNG to make it smaller if possible so as to speed up page loading. Lossless methods will be used for both. You can select lossy method and progressive mode when compressing jpg images. These will decrease the file size of the images.
Select this option will keep the PHP tags <?php ?> unescaped in title and in the content of meta tags with names "author", "description" and "keywords".
Select this option to load the Javascript files asynchronously so that they will not block the rendering of a page giving an impression that the page is loaded quickly.
Load CSS style sheet asynchronously and inline above the fold CSS styles
Select this option to load the CSS style sheet asynchronously so that it will not block the rendering of a page. Also inline the above the fold CSS styles so that even the style sheet has not been loaded, the page can be rendered without it giving an impression that the page is loaded quickly.
