Ethereum's increasing popularity, driven by tokenization, decentralized exchanges (DEX), and DeFi, has led to unprecedentedly high gas fees, posing challenges such as higher transaction costs and longer mining wait times for users. This situation exposes transactions to frontrunning risks during their stay in the mempool, where skilled traders and bots exploit the opportunity by strategically placing their transactions with higher gas fees to gain priority. The research highlights that significant frontrunning occurs even when considering only a fraction of DeFi contracts, suggesting a larger scale of the issue in the broader market. The concept of Miner-Extractable Value (MEV) highlights the potential exploitation of smart contract systems through adversarial transaction ordering, with MEV auctions being proposed but criticized for their potential negative impact on the blockchain community. Chainlink Labs has developed a solution called Fair Sequencing Service (FSS) to address unfair transaction ordering and high gas fees, allowing DeFi applications to ensure fair treatment of users according to predefined criteria. FSS, leveraging oracle networks, decentralizes transaction sequencing, addressing MEV issues without incentivizing frontrunning. Despite new transaction processing approaches like rollups offering scalability and privacy, they do not resolve MEV problems, emphasizing the need for fair sequencing methods like FSS to enhance DeFi's growth and equity.