What is the difference between Uniswap V1 and V2?

So, I'm curious to know, what exactly sets Uniswap V1 apart from its successor, Uniswap V2? I understand they're both decentralized exchanges, but I'm interested in the specific technical differences and improvements that Uniswap V2 brings to the table. Is it simply a matter of speed and efficiency, or are there more nuanced changes that make V2 a more attractive option for traders and investors alike? I'd love to hear your insights on this.