Efficient Appium scripts emphasize reusability, maintainability, and stability. Using the Page Object Model (POM) design pattern reduces redundancy and enhances readability. Synchronizing tests with explicit waits helps avoid flaky results. Testers should also use locators wisely — preferring accessibility IDs or resource IDs over fragile XPath expressions. In New York-based testing teams, parallel execution through tools like TestNG or Appium Grid helps improve speed. Integrating test reports with Allure or Extent Reports also improves visibility. Clean code structure, modularity, and environment consistency make Appium test suites highly scalable and dependable.