How fast is Aleph Zero?

Could you elaborate on the speed capabilities of Aleph Zero? I've heard it's a cutting-edge blockchain technology, but I'm curious about its specific performance metrics. How does it compare to other blockchain solutions in terms of transaction speed and scalability? Does Aleph Zero have any innovative techniques or features that contribute significantly to its speed? Also, is it sustainable for high-volume, real-world use cases? Understanding its speed is crucial for assessing its potential in the rapidly evolving cryptocurrency and finance landscape.