Speed optimisation is always a key issue with any WordPress web design project.
One element you can control is how the browser loads content. With ‘Lazy Loading’ (love the name) the script will make sure that the browser does not load any images that are outside of the viewport, meaning the page will load quicker.
Any function that allows your WordPress website to load quicker gets a thumbs up from us. Below is a link to a great post that lists some of the best plug-ins to use.