In air speed vs On ground speed

I’ve been tweaking different vars in the character movement component but nothing seems to control the in air speed or velocity. I want some of my characters to be slower in air then on ground and vice versa. Can anyone point me in the right direction? Perhaps I overlooked something?

There is a boolean called IsFalling in character movement component. I think you could set a different speed by using that bool for whenever a character is flying or falling.