Is it normal for a car to be at 2000 rpm at 80 mph?

Here is some information about engine speed in cars:

When driving a manual car, it is important to match the speed with the engine speed. If the car is not in a good gear, the engine speed may become too high.

The relationship between speed and engine speed in cars:

When driving at high speed, the engine speed can be reduced by changing to a high gear, which can improve the fuel efficiency of the car. However, when you need to overtake, you should change to a low gear to increase the engine speed quickly because the low gear has a large gear ratio, which can ensure a fast overtake.