The polling rate refers to how many times in a second the mouse sends its current position to the computer. If this value is increased, the mouse will send information regarding its position even more often. In real life, many gaming mice will have their polling rate set to 1000 Hz, so that the mouse will send its active position over 1000 times in one second. Cursor movement can become smoother when the frequency is high along with an increase in the responsiveness of the cursor of the computer which is quite required for the high refreshing screen.