why the listview-builder is lagging while scrolling with api intigration in flutter

Question

flutter app is lag on scrolling with API integration and its performance index is going above 16ms want smooth scrolling and better performance

Answer 1

The ListView with API integration might lag while scrolling due to large number of items, large image sizes, inefficient API calls, inefficient widget rendering, or excessive animations/effects. To improve performance, implement lazy loading, cache images, optimize API calls, use efficient widgets, and reduce animations/effects.