Images usually account for the most bytes on a page. Therefore, it is very important for you to optimize your images. The less bytes the images are, the faster your pages will load up. Using the right image optimization is a process you need to take. Be careful when optimizing your images. If you optimize the images too much, the quality of the images may be poor. Also be on the lookout for images that you can replace with CSS effects or web fonts. Any image that you can eliminate or replace with web fonts or CSS effects will help with your page speed.