The 5% bonus you offer for investors who are willing to put more than 100 ETH into this seems to be a little bit too low in my opinion.
Yes, here you are right. In such a market, 100 ETH are a very large amount. I think this amount is ready to invest funds or major partners.
It is definitely far away from what big funds consider investing, but for private investors it is still quite a high amount to receive any bonus.