In a nutshell.

A light plane with a big wing will practically float along.

As a plane gets heavier or has a smaller wing or both, it has to fly faster to generate the lift to keep it in the air.

As speed goes up, everything happens faster and you have less time to react.

When it comes time to land, you will end up coming in faster also.

That is what I call a hot plane. I'm sure that someone who has a better understanding of aerodynamics can spell it out better.

Take care,