Find a strong cellular or Wi-Fi signal. This is the most important thing you can do to improve the speed of your app. If you're in a weak signal area, your app will be slow no matter what. Try moving to a different location or closer to a Wi-Fi router. Next steps include closing any other apps that you're not using that can take up a lot of bandwidth and turning on airplane mode for a few seconds, then turn it back off. This can sometimes help to reset your internet connection and improve speed.