Within the immediate render distance, everything is rendered from top to bottom, you don’t run down when falling, you simply fall through the same space which is already loaded in. (Not taking into account any kind of motion blur or lag)
@Crysis, I’d suggest linking your sources, in this case the wiki, as I can not (okay fine, I can this time) read your mind. Here’s the page for other peope: https://conanexiles.gamepedia.com/Pet#Mounts
If you have anything you would like to contribute to the wiki, please reply here, dm me or try contributing yourself (anyone is able to contribute!)