Поищи на форуме или по "гугли" конфиг с мин. настройками. Или попробуй этот:
SET locale "ruRU"
SET patchlist "logon.wowcircle.com"
SET hwDetect "0"
SET gxRefresh "60"
SET gxMultisample "1"
SET gxMultisampleQuality "0.000000"
SET videoOptionsVersion "4"
SET textureFilteringMode "0"
SET playIntroMovie "4"
SET readTOS "1"
SET readEULA "1"
SET readTerminationWithoutNotice "1"
SET showToolsUI "1"
SET Sound_MusicVolume "0.40000000596046"
SET Sound_AmbienceVolume "0.60000002384186"
SET farclip "177"
SET particleDensity "10"
SET rippleDetail "0"
SET reflectionMode "0"
SET weatherDensity "0"
SET readScanning "-1"
SET readContest "-1"
SET installType "Retail"
SET realmList "logon.wowcircle.com"
SET gxVSync "0"
SET Gamma "1.000000"
SET Sound_EnableMusic "0"
SET baseMip "1"
SET environmentDetail "50"
SET enterWorld "1"
SET gxResolution "1280x1024"
SET accountName "Mrs18"
SET mouseSpeed "1"
SET accounttype "CT"
SET realmName "WoW Circle Cataclysm x25"
SET lastCharacterIndex "6"
SET gxCursor "0"
SET gameTip "96"
SET checkAddonVersion "0"
SET ffxGlow "0"
SET shadowLOD "0"
SET useWeatherShaders "0"
SET componentCompress "0"
SET ffxDeath "0"
SET spellEffectLevel "0"
SET coresDetected "1"
SET fixedfunction "1"
SET maxFPS "0"
SET maxFPSBk "0"
SET uiScale "1.1499999761581"
SET gxTextureCacheSize "224"
SET detailDoodadAlpha "0"
SET fullAlpha "0"
SET mapShadows "0"
SET maxlights "1"
SET shadowLevel "1"
SET ffx "0"
SET timingmethod "1"
SET showshadow "0"
SET showfootprints "0"
SET showfootprintparticles "0"
SET overridefarclip "0"
SET horizonfarclip "1305"
SET groundeffectdist "1"
SET smallcull "1"
SET skycloudlod "1"
SET characterAmbient "1"
SET extshadowquality "0"
SET processAffinityMask "1"
Детали типу - реалм, разрешение и тд. уже сам изменишь...
P.S. Мб можно еще сильнее ужать, но тогда вов превратится в майнкрафт ^_^