X @vitalik.eth

Performance Bottleneck - Modexp is identified as a significant bottleneck in ZK-EVM prover efficiency, exhibiting performance up to 50x worse than average blocks [1] Proposed Solutions - Suggests replacing the modexp precompile with computationally equivalent EVM code, acknowledging a potential increase in gas costs [1] - Recommends that applications requiring modexp functionality (primarily for RSA encryption/signing) should encapsulate it within a SNARK [1] Industry Impact - Indicates that very few applications rely on modexp, limiting the widespread impact of addressing this inefficiency [1]