If enabled, it will split each GAME path into multiple search paths, depending on it's contents.
Then when you try to find a file with the GAME search path, it will change the pathID to the content path.

Example:
File: cfg/game.cfg
Path: GAME
becomes:
File: cfg/game.cfg
Path: CONTENT_CONFIGS

This will reduce the amount of searchpaths it has to go through which improves performance.

Content paths:

• materials/ -> CONTENT_MATERIALS
  
• models/ -> CONTENT_MODELS
  
• sound/ -> CONTENT_SOUNDS
  
• maps/ -> CONTENT_MAPS
  
• resource/ -> CONTENT_RESOURCE
  
• scripts/ -> CONTENT_SCRIPTS
  
• cfg/ -> CONTENT_CONFIGS
  
• gamemodes/ -> LUA_GAMEMODES
  
• lua/includes/ -> LUA_INCLUDES