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

Wad: 	   speezdec.wad
Map:       04
Skill:     4
Category:  Tyson
Exe:       dsda-doom 0.28.3 -complevel 9
Time:      14:05.46
Author:    ELMLE

Comments: with enough luck you can probably get sub 10 minutes