A good prelander for mobile traffic should hold attention just long enough to build interest but not too long to lose the user. Around 5 to 8 seconds seems to work well for many affiliate marketers. This short time is enough to create curiosity or show a key message, then move them quickly to the offer page. If the delay is too short, users might not catch what the prelander is about. But if it takes too long, they might lose interest or think the page is not working. Adding some kind of progress bar, fake loading, or short video can help hold attention during those few seconds. The main goal is to guide users from interest to action without giving them time to exit. What's your view on this?