If the app is just newly installed, then it can take a while to download everything, especially when you've been using the app for so long.

The speed is the same for both the iPad and iPhone versions, they just vary on the speed and stability of your internet connection.

If the app is not newly installed, perhaps you took images and it's taking a while to uploaded. For most connections in the Philippines, the upload speed is around 10% of the download speed so it might take a longer time depending on your connection.