The images on the websites are not always optimized and considerably increase the loading time of the pages of a site. Yet image optimization is a simple thing to put in place:
1. Set the display to the correct size:
What is the point of importing a picture on your site into 5184x3456px whereas it will only display in 500x300px? It’s only weighing down your site because your photo in HD will weigh 4000 Ko while the photo resized in 500x300px will weight less than 500 KB
2. Compress visuals:
After you put your visual to the right size, it is still possible to optimize it by compressing it. Many tools and plugins are available online to do so. Be careful, however, to select compression tools without loss (which avoids the pixelized images). After compression, your photo could easily go from 500 to 80 KB.