If a Blooket round is taking too much time away from the questions, test a simpler review format. If students need more independent time, look for an activity that lets them respond separately. The reason for changing should shape the comparison.
Review the current limit first
Blooket's help page says its free plan supports unlimited question sets and games with up to 60 people, with exceptions noted for some modes. Check that page before assuming the class size requires a different product.
Compare another question workflow
Wayground, formerly Quizizz, and Kahoot are alternatives to examine with your own question set. Use the same few questions in a trial and compare how clearly students can read them and how you review answers.
Try a single-screen format
A projected question with paper answers can work when device setup is the main problem. Collect individual responses before discussing the answer so confident students do not determine the whole class's result.
For an observation lesson, EarthGuessr supplies satellite-location rounds. It is a subject-specific activity, not a substitute for a custom question bank. Its multiplayer flow uses sign-in, so a shared-screen exercise may be easier when accounts are unsuitable.