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How to improve list slowness on low-end devices


How to improve list slowness on low-end devices and provide good scroll experience, preventing some blank spaces from appearing?


Create an image to a be the preview for list items without data.

Then, do the following:

  1. Import the image to your application

  2. Open the CSS Editor and create a new class to use the image as background
    .task-list > script{
        background: url(...) ! important;
        /* Drag and drop the image to set the URL of the image */

  3. Add the new CSS class to the Style Classes of the List widget


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