A website can be slow and can have slow server response time for many reasons. One of the most common reasons for a website being slow is slow server response time. Visitors then have to wait which is so irritating experience. It creates a bad user experience.
Well, the load on the server can be reduced if you send the load to client side by using some technique. With this way, the load on the server will be reduced because some task will be handled by the client side instead of performing it on the server.
When the load will be reduced from the server, then the server will respond more quickly then it was responding earlier. This is very clear that it will improve the server response time.