I'm looking for a LAMP stack expert for a short contract to debug some issues I've been having with the backend for my game Shredsauce. Preferably someone with experience untangling a custom mess of PHP and MySQL.

Shredsauce is a freestyle skiing game that I released 10 years ago and have been maintaining ever since. It's played either through the browser at shredsauce.com or on mobile (iOS and Android).

The game is multiplayer with user-generated content. It's the users who create all of the animations, levels and clothing using in-game tools. The content is saved to and loaded from a remote server.

In a typical game the user logs in. Their clothing is loaded as well as their animations. They then enter a room. The level as well as the clothing and animations of anyone who is in that room is loaded. When you restart back from the top of the level, if new players have entered the room, their clothing and animations are loaded in as well.

Lately the server has been getting stuck. I've done a lot of work to reduce the load on the server but I think there might be some sort of memory leak. When traffic is higher the game becomes unplayable.