Doom Speed Demo Archive
https://dsdarchive.com/

Wad: 	   ZOF.wad
Map:       24
Skill:     4
Category:  UV Max
Exe:       dsda-doom 0.28.3 -complevel 9
Time:      35:20
Author:    ELMLE

Comments: Super scuffed run, had to stop and look at the map a couple times to see which doors I had opened.
I wouldn't say there is anything particularly difficult about this map, it's just kinda long.
Can definitely be under 30 minutes if you actually learn the map.