There is no problem for the clock if nothing is touch, it run perfecly fine, unless you do an action, then it simply freeze and as the action is resume the clock jump to the time it suppose to be. The program keep counting down so it jump to the right place. Still bad for the customer to see this. This is why we are using another computer to have it on simple mode, which have no problem at all with that much players.
Where is slow down:
1- When you load a tournament with already 700+ players in, it take a while to load, the more you have the longer it takes.
2- Changing from one Tab to another one, example Tables to Players. the more players you have in the tournament the slower it take to change. changing the setting to see players on multiple page help but still slower then a tourney with 80 players.
3- When selecting an option on a players, mostly anything that ask for a search...
4- When busting a player, this one is the worst at 700 it can take up to 3-4 sec, at 1600 it can go up as much as 12-15sec
Those are the point where it slow down that i can think of right now, since we dont use much more option in the program for this part of the tournament (day 2 or more). Also all others kind of option like exporting, printing or else works fines as usual.
Hope this help to pin-point the problem.