configz help !

// r_

seta r_ext_compressed_textures "1"
seta r_ext_gamma_control "1"
seta r_ext_multitexture "1"
seta r_ext_compiled_vertex_array "1"
seta r_ext_texture_filter_anisotropic "0"
seta r_ext_ATI_pntriangles "0"
seta r_ext_texture_env_add "1"
seta r_glDriver "opengl32"
seta r_allowExtensions "1"
seta r_glIgnoreWicked3D "0"
seta r_ext_NV_fog_dist "0"
seta r_nv_fogdist_mode "GL_EYE_RADIAL_NV"
seta r_clampToEdge "1"
seta r_picmip "3"
seta r_picmip2 "3"
seta r_roundImagesDown "1"
seta r_rmse "0.0"
seta r_detailtextures "0"
seta r_texturebits "16"
seta r_colorbits "16"
seta r_stereo "0"
seta r_stencilbits "0"
seta r_depthbits "16"
seta r_mode "6"
seta r_oldMode ""
seta r_fullscreen "1"
seta r_customwidth "1024"
seta r_customheight "768"
seta r_customaspect "1"
seta r_simpleMipMaps "0"
seta r_subdivisions "20"
seta r_drawFoliage "0"
seta r_smp "0"
seta r_ignoreFastPath "0"
seta r_lodCurveError "60"
seta r_lodbias "2"
seta r_flares "1"
seta r_ignoreGLErrors "1"
seta r_fastsky "1"
seta r_drawSun "0"
seta r_dynamiclight "0"
seta r_dlightBacks "0"
seta r_finish "0"
seta r_textureMode "GL_LINEAR_MIPMAP_LINEAR"
seta r_swapInterval "0"
seta r_gamma "3"
seta r_facePlaneCull "1"
seta r_railWidth "16"
seta r_railCoreWidth "1"
seta r_railSegmentLength "32"
seta r_primitives "0"
seta r_trisColor "1.0"
seta r_normallength "0.5"
seta r_highQualityVideo "0"
seta r_inGameVideo "0"
seta r_intensity "1.5"
seta r_inGameVideo "0"
seta r_vertexLight "0"
seta r_ignorehwgamma "1"
seta r_mapoverbrightbits "3"
seta r_overbrightbits "1"
seta r_wolffog "0"
seta r_displayrefresh "75"

which commands i must change to get worst graphic?

(without funny jokes, ask perfo are allowed)

nP enlgish < all