Terminal recording issues?

Q: Why isn't terminal recording a 1: 1 recording, and how is it different from terminal recording tools like script?

A: Imagine if you are connected to a terminal for a long time, but you are not operating at all times, then recording the inactive moment is useless waiting, and you will also wait for the same time when you play back the video. Assuming that you are connected to the server 8 hours a day, and the reality is that the process of terminal operation is only 5 minutes, then sshfortress will only record 5 minutes, the remaining 475 minutes is no operation time is not recorded, then the terminal playback only takes 5 minutes, script and other terminal recording tools will record 1:1, then the playback time will also be 1:1. .