I have a game with yearly leaderboard but now is so slow and unresponsive. It has around 14 000 records. Every user has unique score and I just change that score. To get a user rank it takes more than 45 seconds. Sometimes it just fails with internal server error message. Also it fails to update users score. I notice in the morning where there is no much traffic every think works fine. Is there any way to optimize servers or incise the power.