Xbox keeps updating games
When your download resumes: Check the speed at which your game or app is downloading.
At this point, avoid launching any games that might slow down the speed of your download.
Ideal speed when you are connecting to Xbox Live should be around least 1.5 Mb/s for the best experience. Often, background downloads are constrained while a game is running.
The action when confirmed, will automatically pause any existing downloads and will resume again once the console is restarted.
This results in the slow game or app downloads on Xbox One. Suppose a game has over 1 GB worth of updates, the installation of the core files will take much time and not complete until that 1 GB is downloaded and installed.
First, find if your Xbox One is downloading a game at a very slow speed.
If yes, you may be experiencing one of the following symptoms, .
Thereafter, under the “Queue” section of ‘My games & apps’, note the download speed shown on the game or app that is being installed. If you notice slow speeds, it may take some time to download the game.