A. 1. Check your internet connection: Ensure you have a stable and fast internet connection. You can run a speed test to verify your upload speed. If it's slow, consider switching to a wired connection or a different Wi-Fi network. 2. Optimize file size: Before uploading, compress large files using tools like WinRAR or 7-Zip to reduce their size. This can significantly speed up the upload process. 3. Use the Dropbox app: If you're using a web browser, try switching to the Dropbox mobile app for Android, as it may handle uploads more efficiently.

B. 4. Pause other uploads: If you have multiple uploads happening simultaneously, pause them to prioritize the file you want to upload. 5. Update the app: Ensure you are using the latest version of the Dropbox app, as updates often include performance improvements.