The first time the resource is accessed is the most important. You have precious few seconds before the user instinctively reaches for the back button. See ht

The first time the resource is accessed is the most important. You have precious few seconds before the user instinctively reaches for the back button. See http://www.fastcompany.com/1825005/how-one-second-could-cost-amazon-16-billion-sales http://www.fastcompany.com/1825005/how-one-second-could-cost... and other similar articles.