Sieges timer every one hates them, refresh or all your time and money to buy them or make them are gone, please remove the timer that takes also allot cpu from servers, this will improve the performance and give less lag.
The cpu and hard drive and working memory from your systems takes speed to check every siege timer on the back ground every second or less than a second.
You can also make delete button to delete sieges, iff you are afraid some one can remove all make a limit to remove one siege a hour for each player/account.