Pump performance refers to how effectively a pump can move fluids, typically measured by its flow rate and pressure. Flow rate indicates the volume of fluid the pump can transport in a given time, while pressure reflects the force the pump generates to push the fluid through a system. Key factors influencing pump performance include the pump design, the type of fluid being moved, and the system's resistance. Understanding these factors helps in selecting the right pump for specific applications, ensuring efficiency and reliability in various industries, such as water treatment and oil and gas.