If Samsung's dual app is having trouble restoring WhatsApp backups, try making sure that both the app and your device's software are up to date. You could also try backing up your chats again and then restoring them, or using a different method to tr...
If your WhatsApp is running slowly, try closing any other apps running in the background or clearing your device's cache. You could also try updating WhatsApp to the latest version or reinstalling the app to see if that helps improve its performance.
If reinstalling WhatsApp didn't fix the issue, try clearing the app's cache and data in your device's settings. If that still doesn't work, you could try restarting your device or contacting WhatsApp support for further assistance.
Try checking the app's settings to ensure that it has access to your device's storage and camera. If that doesn't work, you could try uninstalling and reinstalling the app to see if that resolves the issue.