I think this is what is anticipated. Sounds like there needs to be fine tuning on the fan speed end. In a production environment with 3 Pro bundles we need to not have a jet engine room. I would expect to slice in Cura, send to Ultimaker S5, and have it dictate the fan speed needed without having it sound like a 747. I understand some material will need a faster fan speed to properly capture particulates.
For example with regular PLA:
If previously without the air manager the Ultimaker S5 was printing properly, it seems it does not need 75% speed from the air manager throughout the print. It seems the air manager needs to better determine what's going on inside the chamber.
