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

Wad: 	   garrulo.wad
Dehacked:  GARRULO.DEH
Map:       20
Skill:     4
Category:  UV Max
Exe:       dsda-doom 0.28.3 -complevel 2
Time:      4:49.49
Author:    ELMLE

Comments: I've played worse maps I suppose, only my second finished run so it can surely be faster. Sub 4 minutes would be tough I think.