Qstream delivers bite-sized chunks of information over intervals of time. Questions will remain in your queue and have to be answered before receiving new material. Participants who keep up with questions as they are delivered will see new & repeated material faster, therefore earning more points.
If you were not able to answer questions by the time new ones were delivered, you would not have received these new questions. However, if you continue to keep up with your questions, you should have the opportunity to see all questions in the Qstream and score points accordingly.