Why do airplanes look like they are flying very slowly from the ground?

When we observe airplanes taking off, they seem to move very slowly, mainly due to illusions and motion effects. This

Firstly, when airplanes reach high altitudes, it becomes very cold. Due to the effect of distance, we perceive the airplane's speed as slow because our eyes find it difficult to detect the small movements of distant objects

Secondly, the speed at which I fly in the air is not fast, but compared to ground buildings or features, the airplane's speed is much faster than in the air.

Lastly, the human perspective makes it seem as if the airplanes are flying very far away. In fact, commercial airplanes fly very fast, typically exceeding speeds of 500 miles per hour (800 kilometers per hour). However, due to the previously mentioned visual effects, during the flight, the airplane pilots appear to move slowly.