What problem does Aptos solve?

Could you please elaborate on the specific problem that Aptos aims to address? I'm curious about how this cryptocurrency project intends to revolutionize the financial landscape and what challenges it's trying to overcome. Is it focusing on scalability issues? Or is it more about enhancing transaction speed and efficiency? Alternatively, does Aptos propose a unique solution to the problem of security and privacy in the blockchain ecosystem? I'm keen to understand the core problem that Aptos is targeting and how its technology differs from other cryptocurrencies in the market.