In other to solve the issues, I conducted thorough testing and analysis to identify the specific performance bottlenecks causing sluggishness on certain devices. I then implemented several optimization techniques, including image compression, code minification, and resource caching, in other to reduce load times and improve overall responsiveness. Additionally, I leveraged responsive design principles to ensure that the website's layout and functionality adapt seamlessly to varying screen sizes and resolutions. Through iterative testing and refinement, I successfully resolved the performance issues, ensuring that the website delivers a smooth and consistent user experience across desktops, smartphones, and tablets alike.