Simple really, allow people to enter Nyzul Isle solo/duo. At 90, many jobs can solo/duo through Nyzul Isle with relative ease. The hardest part of getting to floor 100 is finding people that want to do it. Even if it's not easy, we should at least have the option of entering solo.

The only thing I could see conflicting with this is lamp floors, but I can see that being adjusted fairly simply, such as making the lamps able to be activated one at a time instead of all at once.