I have a 100 mbits connection. I did a speed test on my Xbox Series X and the 100 mbits are working. But when I want to install a game, it downloads 10 GB at full speed and then stops. At some point it continues again. The download for Indiana Jones and the Great Circle took 5 hours. I have no idea how to fix the problem. It only happens in the afternoons and evenings. In the morning everything works perfectly.