You can optimize by ensuring both sections are requested in parallel using proper asynchronous loading (AJAX or fetch-based loading for the widget) and avoid any render-blocking scripts on the left side. Also, place both sections in the same DOM flow so the browser treats them with equal priority, and enable lazy loading carefully so it doesn’t delay one side unnecessarily.
About caching the widget: yes, caching can help improve speed, but it won’t truly “sync” loading times. It only reduces repeat load time, not the initial loading imbalance. Use server-side caching or object caching for the widget if possible.
