Too Long; Didn't Read
Bitcoin's scalability (measured in terms of tranactions per second) is the single biggest roadblock to mainstream adoption of blockchain technology today. Bitcoin manages a measly 4 TPS when compared with Visa’s 1700 TPS. Bitcoin fares slightly better at ~10 TPS on an average day and 20 TPS at best. Bitcoin has facilitated the field of DeFi (Decentralized Finance) where blockchain, digital assets and smart contracts are used to provide monetary services instead of conventional tools.