To decrease gas costs, set your gas fee and choose the priority level of your transaction wisely. Since the gas fee represents the amount you are willing to pay per unit for a given transaction, the higher the gas fee, the more incentive validators have to execute the transaction promptly. Set your gas fee too low, however, and validators will have little to no incentive to execute your transaction, in which case you may be forced to resubmit the transaction and pay even more gas fees.