most of the time when there is a fight people are really bored and want something to do. There is usually more than enough people on (more than regular queue window times) for the queue window to open up and have players be able to find matches pretty easily. My suggestion is to just make it open when theres at least 100 players on with active fight and then when the player count drops below 100, put like a 30 minute timer on it so it isnt just reopening and closing;
lmk if u need clarity i speed wrote this
lmk if u need clarity i speed wrote this