A store that loads quickly makes it easy for visitors to find their way around, look around, and buy things without any problems.
Stores that load quickly tend to have higher conversion rates because customers are more likely to finish their purchases when pages load quickly.
Search engines like websites that load quickly, so having a fast Shopify store can help your SEO rankings.
Bounce rates go down because people are less likely to stay on a page if it takes a long time to load. Bounce rates stay low when the store is quick.
Since more and more people are using phones, a fast store is important for a good mobile shopping experience.