A website’s speed and performance depends on multiple things. It possible that a website is using various techniques and best practices to improve its performance. Some possible ways for a website to perform well for its users, are the following:
Optimized images: The website may be using optimized images, which can help reduce the size of the images and improve load times. This can be achieved by resizing the images depending on screen size, but also by providing the images with an advanced compression format, such as .webp or .avif
Content delivery network (CDN): The website may be using a CDN, which can help reduce the distance between the user and the server, and improve load times.
Caching: The website may be using caching, which can help reduce the amount of time it takes to load a page by storing a copy of the page on the user’s computer.
Server configuration: The website may be using powerful and optimized servers, which can help improve the speed of the website.
It’s worth noting that website speed is a complex issue and it can be affected by various factors, including the user’s internet connection, the user’s location, the number of users accessing the website, and many more.