**Tell us about your environment** - **ESLint version:** 9.x - **eslint-plugin-vue version:** 10.3.0 - **Node version:** 22.15.1 **The problem you want to solve.** Test execution could be improved: 11,059 tests take 74 seconds with Mocha in my enviroment. **Your take on the correct solution to problem.** **Migrate to Vitest** - PoC implemented with proven results. * https://github.com/2nofa11/eslint-plugin-vue/tree/chore/migrate-to-vitest ### PoC Results Performance: 74s → 24.25s (67% faster) **Additional context** - All 11,059 tests pass without modification - ESLint RuleTester compatibility - [Codemod.com recipe](https://codemod.com/registry/mocha-vitest-recipe) executed - All dependencies updated - test suite validated