docs: rewrite motivation to highlight TSLint spirit and technical purity

Author: johnsoncodehk

README.md

@@ -15,9 +15,11 @@ TSSLint is a minimalist diagnostic extension interface built on the TypeScript L
 
 ## Motivation
 
-TSSLint was created to solve a specific pain point: **editor lag during "Auto Fix on Save"**.
+TSSLint is the **spiritual successor to TSLint**, built on the belief that TSLint's original philosophy—**direct integration with native TypeScript APIs**—is technically superior for linting TypeScript code.
 
-In large-scale TypeScript projects, traditional linters (like ESLint) often cause noticeable delays when performing auto-fixes on save, as they frequently need to re-initialize type-checking or run in separate processes. By running directly as a `tsserver` plugin and sharing the existing type-checking context, TSSLint provides near-instant diagnostics and fixes, ensuring a smooth and uninterrupted development experience.
+Traditional linters (like ESLint) must first convert TypeScript's AST into a compatible format (like ESTree) before running rules. This extra layer of abstraction and the need to re-initialize type-checking in a separate process create a significant pain point in large-scale projects: **editor lag during "Auto Fix on Save"**.
+
+TSSLint eliminates this overhead by running directly as a `tsserver` plugin. It shares the existing `TypeChecker` instance and operates on the native TypeScript AST, providing **near-instant diagnostics and fixes** and ensuring a smooth, uninterrupted development experience.
 
 ## Key Features