I was in the BRU lounge on April 18, and nearly missed by LH flight BRU-FRA. 20 minutes before departure, the flight screen says boarding not started yet. 16 minutes before departure, the screen says boarding. I take my stuff and the screen immediately says final call. The screen says walking time to the gate is 1 minute. I run, but it's not anywhere near 1 minute. It's going around, then up the escalator, then a long walk, and by the time I reached the gate they were going to close. I was the last passenger to board, the door closed behind me and we departed right away.