Quote Originally Posted by Felis View Post
It was not because the engine. SE designed the 1.0 dungeons for speedruns. There were even rewards for speedruns.
A extra chest at the end with the possibility to be a darklight body gear in it (20 minutes or less) and 100% dropchance for the relict quest item (17 minutes or less)
Actually it was a instance engine issue. They wanted to move people through instances ASAP to prevent overload of the server so they added time limited and gave incentives.