system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] How fast is Webway travel?

The Dark Eldar have Commorragh, the Craftworld Eldar have, well, Craftworlds. From their respective safe havens, the Eldar seem to be able to act all across the galaxy, and don't ever seem to set up any kind of forward base or supply lines or anything of the sort.

So just how quickly can the Eldar move throughout the galaxy? Does your speed depend on your vehicle, or do infantry move just as fast as space-capable ships?
gpt
Imagine all the galaxy bent to the surface of a sphere, enclosed within that sphere a labyrinthine maze of web-like corridors of varying size and shape. This is nothing like the Webway, but it's the closest your mortal mind can come to understanding it.

In these corridors, traversing distances is similar to how it is managed in realspace: It is faster to fly than to walk. However, some passages are so narrow that one must walk, and some are so jagged that one can only fly.

As for speed, it varies (as it does for your own means of travel). Distance is no real obstacle but one must be cautious not to get lost. As you may well know, the Webway is a vast labyrinth, impossible to chart upon any map. We can pass through the Webway at great speed, even faster than your Warp ships (usually - the currents of the Warp can be fickle) but we are limited somewhat by the need for a gate to enter and exit. We may only emerge near where these gates are found, else our travel is tediously slow.