If they continue to make profits, they will not have a problem because more hot money will flow in and those will remain for a long time, but when problems occur then we will see how strong their financial position is and how well their cash management is.
Therefore, even 8% is not considered high if you compare it to rates, for example, 10% in Binance and others, but the main difference is the degree of solidity of those who print these coins.