Page speed is a measurement of how fast the content on your page loads. Page speeds can be described in either “page load time” the time that it takes to display fully the content of a website; or “time to first byte” the length of time it takes for your browser to receive the first byte of information from the web server. Search engines factor page speed into their algorithms which can dramatically affect your visibility and page rank.
No matter how you measure it, having faster page is better. Faster pages have better conversions rates as well as achieve higher rankings. When search engines look for information they have a very small amount of time in which they can “crawl” your page for information, when you pages are slow to load and have poor coding search engines skip over them, which negatively affects your indexation. Page speed is also important to the user experience, when your page speed is optimized people will spend more time on your website, resulting in lower bounce rates.