As we have seen with the ETFs/Mutual fund industry, fees are going lower every year with the competition. From my understanding if I decide to charge 1% management fee, it is set in stone and cannot be changed. However it’s not how it works in the real world. Fund managers have the right to maintain or lower the management fee to deal with the competition. I feel it should be the same with the smart contract so you don’t have to create a new vault every time you lower your fees.