How can incorporating WebAssembly improve performance in a web application?

With the increasing complexity of web applications, performance has become a crucial aspect of user experience. WebAssembly (Wasm) is a binary instruction format for a stack-based virtual machine, designed as a portable compilation target for high-level languages like C, C++, and Rust, enabling deployment on the web for client and server applications. By allowing developers to run code with near-native performance in a safe, sandboxed execution environment, WebAssembly promises to revolutionize web applications. This leads to a critical analysis of how exactly incorporating Wasm can enhance the performance of web apps, potentially outperforming traditional JavaScript-based solutions, and what implications this has for future web development practices.