Hi We are simulating encryption modules (16-bits and 64-bits) to verify the circuit's security. The 16-bit module has 1640 transistors, and the 64-bit module has 6560 transistors. We tried using UIC (tran step stop UIC) and set all power supplies to 0, but it still takes over 30 minutes to load the 16-bits module. Is there a better way to improve this?