Um, its an aggregate site. The average user took 50 hours for DS1 main (min/max 29h-76h for first playthrough), 64 hours for Main+Extra (includes dlc/optional quests). You can see the speedrun sampling was 4h44m avg (min/max 2h30m-17h). I dont see even remotely how that's "heavily broken" -- exactly how you play is not the absolute average.