The TypeScript team is making significant strides in improving TypeScript performance by embarking on a native implementation of the compiler and tools. This new approach will drastically enhance editor startup times, reduce build times by up to 10x, and minimize memory usage. The native implementation already shows remarkable speed improvements when checking popular codebases. The team anticipates a feature-complete solution for project builds and a language service by the end of the year. Additionally, the team plans to align the native codebase with the current JS codebase for future releases, aiming to provide a faster and more efficient development experience for all TypeScript users.
https://devblogs.microsoft.com/typescript/typescript-native-port/