WoW API: CVar spellEffectlevel
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Description:spellEffectLevel will increase or decrease the visual intensity effect of spell graphics. This doesn't effect all spells but has a great effect on area of effect spells such as rain of fire.
Useage: The general command line looks like this spellEffectLevel ### (default value seems to be 25) There are 2 ways to set this: 1st: add the following line to your config.wtf file SET spellEffectLevel "###" or 2nd: use the following slash command in game /console spellEffectLevel ### The second method give you the ability to adjust different values to experiment with what works best for you ### -- is a value from 1 to 1000
If you wish to improve your FPS and lag in dungeons try setting this value to 1