https://www.cleveroad.com/blog/these-9-website-performance-optimization-techniques-will-help-you-speed-up-your-website

There are no second chances when it comes to usability of a product. Every detail matters and the website load time isn’t an exception. In fact, it’s one of the most irritating problems for users that make them leave and never turn back. Surveys suggest that 40% of people abandon a website that loads longer than 3 seconds.
Just think, almost half of your potential customers will leave the website if it loads longer than 3 seconds! At the same time, high-performance websites demonstrate better results on a number of parameters including conversion, ranking, engagement etc.
In other words, a slow website won’t bring you the same level of revenue as performative one. So, in this guide, we unveil some simple steps to website load speed optimization.