World of Warcraft background FPS
In a not-so-recent patch, Blizzard increased the background FPS of World of Warcraft from ~4 to 30. They also changed it so this FPS will take effect when the window is not in focus. Previously, it only activated when minimized. There are many potential reasons to be unsatisfied with the first change. Lets say you have a weak computer and can’t multitask with WoW anymore.
To change the background FPS, you may either change the maxfpsbk value in the config.wtf file or with a line of text in-game.
Type
/console maxfpsbk 8
to set the maximum background FPS to 8. This can be any integer, so you can set it higher than 30 if you wish.
(Note: It cannot be set lower than 8. If you try to set it lower than 8, it will still run at 8.)