pb with water and FPS

Hi, I've got two pb ... I explain below.first, this a extract of my fsx.cfg My configuration is in my signature. All my drivers are updated. ------------------------------------------- [JOBSCHEDULER]AffinityMask=14 [bufferPools]UsePools=1RejectThreshold=102400PoolSize=2097152 [GRAPHICS]ALLOW_SHADER_30=1HIGHMEMFIX=1D3D10=0STALE_BUFFER_THRESHOLD=1024 // Valid values are 5-1024TEXTURE_MAX_LOAD=4096NUM_LIGHTS=8AIRCRAFT_SHADOWS=1AIRCRAFT_REFLECTIONS=1COCKPIT_HIGH_LOD=1LANDING_LIGHTS=1AC_SELF_SHADOW=0EFFECTS_QUALITY=2GROUND_SHADOWS=0TEXTURE_QUALITY=3IMAGE_QUALITY=0See_Self=1Text_Scroll=1SHADER_CACHE_PRIMED_10=1693500672SHADER_CACHE_PRIMED=1693500672 [Display]UPPER_FRAMERATE_LIMIT=0TEXTURE_BANDWIDTH_MULT=40TextureMaxLoad=30ChangeTime=4.000000TransitionTime=4.000000 [Main]DisablePreload=1User Objects=Airplane, HelicopterProcSpeed=7438PerfBucket=1 [DISPLAY.Device.ATI Radeon HD 5750.0]Mode=2560x1440x32AntiAlias=1Anisotropic=1 [AccelerationPack]ControlsFirstRun=0HomePageFirstRun=0 [CONTROLS]Controls_Default=StandardControls_Current=StandardKBDAIL=64KBDELEV=64KBDRUD=64 [VirtualCopilot]VirtualCopilotActive=1 [DISPLAY.Device.ATI Radeon HD 5750.1]Mode=1024x720x32Disable=1Filter=0Dither=0MipMap=0Fog=0FullScreenFiltering=0VolShadow=0SoftShadow=0AnimWater=0Water20=0VolTexture=0TnL=0DXTn=0TextureForce=0PanelAsTexture=0TEXBEM=0UseShaders=0TableFog=0Shader20Plus=0 [REALISM]PFactor=0.000000Torque=0.000000GyroEffect=0.000000CrashTolerance=0.000000General=0.000000UnlimitedFuel=TrueAllowEngineDamage=FalseTrueAirspeed=FalseAutoCoord=TrueRealMixture=FalseStressDamage=FalseGEffect=FalseManualLights=FalseGyroDrift=FalseCrashWithDyn=FalseCrashDetection=FalseAutoTrim=False ----------------------------- I've got two pb :1 - I use REX2, and I'm not satisfy of the water. The rest of the scenery is OK ...2 - My FPS on KMCW or LFPG (Mega Airport Roissy Charles de Gaulle) are low (15 to 20 max). can you help me ? Thank you,