Network performance refers to the speed, reliability, and efficiency of data transmission in a computer network. This research area focuses on developing methods and techniques to improve the overall performance of networks, such as minimizing latency, optimizing bandwidth utilization, and enhancing network security. Researchers in this field analyze network traffic patterns, design protocols, and algorithms to enhance network performance, and develop tools for monitoring and troubleshooting network issues. The ultimate goal of research in network performance is to ensure fast and reliable communication between devices and systems within a network.