The bridge is currently secured by Protofire, Hashquark, InfinityStones, Wetez, and Meter. 3 out of these 5 relayers have to sign off on a transaction to go through. Typical transfer between BSC and Meter takes around 10 to 20 seconds, while any transfer that involves Ethereum requires 25 block confirmations for the bridge deposit transaction on the Ethereum side (When the UI shows "In transit") which may take 10 to 20 minutes. The bridge fee exists to support the gas spending and operations for the team of decentralized relayers. Meter also has a bridge fee subsidy program that reimburses up to 85% of the bridge fee in MTRG. Details could be found by clicking the “i” information icon beside the bridge fee.