I've either played this exact map before or it's made up completely of other map segments. Either way it's a little bit underwhelming for a map 8.

You can actually get the yellow key card early by I think doing a linedef skip with the trigger on the second stair. There's an invisible wall but you can still inch around the left side to get up the stairs. This was a little precise so I don't even bother going for it. You also still have to lower the stairs anyways because you have to shoot that switch from above so I'm not even sure it would save a ton of time.

After I take the big elevator up, I take the long way to the door I'm going to because the shorter path almost always had enemies blocking the platform from raising.