By Sunil Srivatsa, founder and CEO of Storm Labs DeFi offers exciting possibilities, but, beyond the upfront gas fees, there are hidden costs that can significantly eat into your potential returns. Unlike traditional payment processors like Visa (NYSE: V) and Mastercard (NYSE: MA) with fixed fees, smart contract blockchains operate differently. On platforms like Ethereum (CRYPTO: ETH), Solana (CRYPTO: SOL), and EVM-compatible chains, gas fees are dynamic. This means the cost to process your transaction fluctuates based on network congestion and the priority you set for completion. Currently, t…