How to improve server response times
Use fast web hosting
It is critical to ensure consistent and quick server response times. To accomplish this, you’ll need to invest in a high-performance server. Slower servers are caused by free web hosting, poor hosting providers with little or no assistance, and shared resources.
Use a CDN
A content delivery network (CDN) is a network of proxy servers and their data centres that is deployed over the internet. They are geographically dispersed in order to offer users with content as quickly as feasible.
Recommend to use Varnish, Full page caching.
The database optimization determines the response time. The database answers swiftly to queries when you first set up a website. As time goes on, the database fills up with new information. Massive volumes of data are stored as a result of the compilation. So we recommend optimizing databases to improve the server response time.