You need to make a fairly decent amount of wagers to get that boost from 16 to 60%
You are right, they say something about that here
https://betfury.is/crypto-stakingWager requirements apply. Please, refer to the details on the page.
If wager requirements are not met, your rewards will be based on 0% APR.
Looking closely, I have found that you need to stake 6x the principal amount to get 60% APR

This is quite high imo...