The slow water flow is due to the dispenser's automatic adjustment of water flow and heating power to maintain the desired temperature. When you set a higher temperature, the water dispenser reduces the flow rate to ensure the water is heated to the correct level. Although this will make the flow seem slower, it is a deliberate design choice that helps prevent stagnant water. This feature not only ensures you get the precise temperature you want but also promotes better hygiene and health by avoiding water that has been sitting too long.