[{HVY-E}Jinxx]

O.k.

After reviewing your specs and your Conf.ini file. Your card (6800) is underpowered for the Extra Eye Candy with the mod.

Try altering these settings and let me know if it works better for you.

[game]
Arcade=0
HakenAllowed=1
HighGore=1
mapPadX=0.68125
mapPadY=-0.054166667
viewSet=50
Intro=0
NoSubTitles=0
NoChatter=0
NoHudLog=0
NoLensFlare=0 Change to 1
iconTypes=3
eventlog=eventlog.lst
eventlogkeep=0
AirIntensity=High
GroundIntensity=High
SlowFire=5.0
3dgunners=1 Change to 0

[Render_OpenGL]
TexQual=3 Change to 2
TexMipFilter=2
TexCompress=2
TexFlags.UseDither=1
TexFlags.UseAlpha=0
TexFlags.UseIndex=0
TexFlags.PolygonStipple=0
TexFlags.UseClampedSprites=0
TexFlags.DrawLandByTriangles=1
TexFlags.UseVertexArrays=1
TexFlags.DisableAPIExtensions=0
TexFlags.ARBMultitextureExt=1
TexFlags.TexEnvCombineExt=1
TexFlags.SecondaryColorExt=1
TexFlags.VertexArrayExt=1
TexFlags.ClipHintExt=1
TexFlags.UsePaletteExt=0
TexFlags.TexAnisotropicExt=1
TexFlags.TexCompressARBExt=1
TexFlags.TexEnvCombine4NV=1
TexFlags.TexEnvCombineDot3=1
TexFlags.DepthClampNV=1
TexFlags.SeparateSpecular=1
TexFlags.TextureShaderNV=1

HardwareShaders=1

Shadows=2 Change to 1
Specular=2
SpecularLight=2
DiffuseLight=2
DynamicalLights=1
MeshDetail=2
VisibilityDistance=3

Sky=2
Forest=2
LandShading=3
LandDetails=2

LandGeom=3
TexLarge=1
TexLandQual=3
TexLandLarge=1

VideoSetupId=17
Water=1
Effects=0
ForceShaders1x=0

PolygonOffsetFactor=-0.15
PolygonOffsetUnits=-3.0

Hopefully that will buy you a little bit more power. If it's still lagging, you may have to derease the VisibilityDistance, LandShading and TexLandQual as well.