What causes the moon to, at least, appear to rise faster than it normally does

There is a full moon outside right now and seems to be rising very quickly. Normally, at least to me, it appears to be almost still. What causes the moon to, at least, appear to rise faster than it normally does?

I apologize if the answer is obvious; I know very little about the night sky.

Refraction of moonlight by the atmosphere makes it look like the moon OR sun "sits" on the horizon and then suddenly seem to move quickly when the center of the Moon OR Sun actually does get above the horizon. It's an optical illusion. IF you really take the time, like five minutes, to watch the Moon move relative to the background stars, it's moving just as fast as it was at moonrise. You just don't have anything of a scale you are familiar with to compare the movement to when it is far from the horizon.

It's a very good question. Most people don't fully understand the concept of "scale". The real optical illusion is how slow the Moon seems to move while it has a high altitude above the horizon. Most people call the rising moon "the Moon illusion." The rising moon is not an optical illusion. The optical illusion REALLY happens when the Moon is high above the horizon.

When the moon is high in the sky it's separated from reference objects along the horizon, like buildings, trees, hills, etc.,. However, when the moon is just rising, all those objects are in your field of view so you have something to compare motion against.