If your site has consistently poor Total Blocking Time scores,which approach should you take to improve this metric?

The correct approach to improve consistently poor Total Blocking Time(TBT)scores is to reduce the total amount of JavaScript loaded on your site while also efficiently loading the site's JavaScript.Total Blocking Time measures the total amount of time between First Content ful Paint(FCP)and Time to Interactive(TTI)during which the main thread is blocked and unable to respond to user input.HighT BT scores indicate that JavaScript execution is blocking the main thread,causing delays in rendering and interactivity,which can lead to a poor user experience.By reducing the total amount of JavaScript loaded on the site, developers can minimize the time spent parsing,compiling,and executing JavaScript code,there by reducing T BT.Strategies to achieve this include removing unnecessary or redundant JavaScript,optimizing code for performance,implementing code-splitting techniques to load only essential scripts initially,and deferring the loading of non-critical scripts.Additionally,optimizing the delivery of JavaScript resources,such as leveraging browser caching,using asynchronous loading techniques,and min if ying code to reduce file size,can further improve T BT scores.Overall,prioritizing JavaScript optimization efforts is crucial for enhancing Total Blocking Time metrics and ensuring a smoother,more responsive browsing experience for users.