Here's 36s for reference on easy NG+. It looks like the time starts when you jump down the hole, and ends the second her "crumble" animation starts.

No it's a bug I'm sure. I've near perfected it as you described, and you and I are sitting at about 36s for the fight (NG+ easy w/magnum). But even if I got 20s somehow in this scenario, there's even MORE people with near perfect 20s on madhouse lol.

Haven't been able to find anything, seems like all the top runners in any scenario are getting around 45s.

Wasn't sure if there was a legit strat to knock this down by 20s, or if the boss fight timer triggers are being glitched somehow.

EDIT: Nevermind, no breakthroughs, definitely just a glitch uploading times with Steam. Just a bunch of casual players unintentionally doing something special to trigger this ;)

About half the top 100 scores on RE.net are 20 seconds on this fight for Steam only. I can't imagine getting below 40s.

Anyone know what's going on?