In this era of fast internet availability in almost every corner of the world, it is expected that applications will have a global user reach. Any delay in the system's response time depends upon the request load and the distance of the end user from the server. If the system is not able to respond to user requests in a timely manner, it can have a ripple effect by continuing to engage all system resources and pile up a huge request backlog, which will degrade overall system performance.
To reduce latency, you should simulate the user's location and environment to identify any gaps. As per your findings, you should design the server's physical location and caching mechanism to reduce network latency; however, the network solution choice for an application depends upon the networking speed, throughput, and network latency requirements. For an application to handle a global user base, it needs to have fast connectivity with its customers and location...
