To implement Fast Update (or Partial Update), you will need to send images continuously, but most of the time, only small areas or fixed objects need to be changed. Without a graphic generation tool or image production engine to handle these small changes, the output effect will be greatly reduced, increasing the system load.
To enhance the visual experience and improve system-level performance for your IoT or smart devices, the best solution is to use an image library for graphics likely to be subject to fast updates. For example, if the application features an interactive user interface with strings, value changes and button controls, the image library could contain a fast update algorithm for each possible state of the elements. The same applies to common features such as radio buttons, progress bars, sliders and checkboxes.