I can tweak both the house edge and the max profit. Lots of people will complain that we'll lose players and whales that way. Investors signed up for the 1%/1% deal, and that's what the deal still is. I don't think it would be right to change it now without consulting the investors. And I have no way of contacting the investors. I don't even know the identity of the biggest investor - I've had literally no contact from them.
There are clearly people both for and against making any changes, so I think it's best to leave the parameters as they are all let the investors decide whether they want to continue to be invested. I don't see what else I can do, really.