TCP Tahoe, TCP Reno, TCP New Reno, and TCP Vegas were among the congestion-control strategies tested in this paper. Several metrics, such as throughput, latency, and packet loss rate, are used to draw comparisons. Using the NS2 simulator, two alternative situations were created: one with a single TCP flow and the other with two. According to the performance investigation, TCP Vegas outperforms other protocols because it detects and monitors congestion early in the process. Furthermore, if there are two TCP flows, one of them will provide the other a greater chance of performing if packet transmission slows down. When Vegas senses congestion, for example, it decreases the quantity of outgoing packets, allowing Tahoe to take use of the network bandwidth. Tahoe will thus have a better throughput.