Note that the current loadless timer works differently in the versions prior to the latest one (v1.0.5).
On previous versions, it seems the timer doesn't run during the phase where the screen is still black, but when you're already able to skip cutscene. Hence, the previous versions will have a lower loadless time compared to the latest version.
Here's the videos comparing both v1.0.4 & v1.0.5. I've also tried v1.0.3 (the version that still has item duplicate glitch) and it works the same way as v1.0.4.
v1.0.4:
v1.0.5:
I did another comparison with the new patch today (not numbered on the patch notes, I just labelled this v1.0.6 for now).
Seems like loading does get faster. I only have 18s IGT-RTA difference here compared to the 23s IGT-RTA difference in v1.0.5.
As there are differences in game speed with higher FPS settings, this leaderboard requires 60 FPS settings for all PC runs. In-game FPS counter needs to be shown as well, which can easily be done with Steam.
For monitors with >60Hz refresh rate, the refresh rate can be modified in Windows settings