☛ - Using fewer colors allows reducing the file size.

☛ - Limiting colors and using similar colors from frame to frame.

☛ - To decrease the file size, one more method is to cut down the pixel dimensions.

☛ - The number of frames should be the exact number for the specified animation.

☛ - Identify the file reduction feature in the software that creates GIF image files.

☛ - Implement dithering. Dithering reduces the banding. The image appears smoother by eliminating colors.