@buildawhale now has a 10% capped ROI, anything past that gets saved for next round. The rounds can be quicker if the round gets capped.
Other bots like @jerrybandfield, smart steem, and a few others implemented a cap and it was being announced today. I suspect this is going to become the norm for a lot of bots.
If you look in the details page you can see the rounds are capped at a fixed 10%.
Thanks for your reply. It is clear about your norm. Sorry for my post. I don't know about this before I wrote this post. Could you drop me link for the announcement.