KyberSwap provides an exchange rate that is offered at the current point in time, however this could change either in or against your favour between the time the transaction is propagated and when it is executed.
To minimise the possibility of a change in rate we recommend using the standard gas fee rate Kyber offers or higher (higher the gas price, faster the transaction). A lower fee could subject you to a long confirmation time, particularly during periods of high congestion in the network.
Minimum Acceptable Rate:
In addition, guard yourself during volatile times by setting the lowest conversion rate you would accept for your transaction. Setting a high value may result in a failed transaction and you would still be charged gas fees. We advise using Kyber's recommended Minimum Acceptable Rate.