"You have more FPS from 1 click but what is the cost?"
"Crashes"

It shouldn't crash obviously, I haven't done any changes since I uploaded it so it could be the game itself just being buggy, a new update causing the crash or your PC. I haven't played long time ago so I can't tell. You can uninstall it and just create an autoexec.cfg, addidng and removing some commands. If you want to do that you can see the discussion in this page (It's called "What it does?")

Crash to desktop

nice.

"Can i download more FPS?"
"Yes you can"

there is no problem with that, some of the commands you share already are in the config like: mat_picmip, datacachesize 128, r_decals, mat_grain_scale_override, etc.

My intentions was to share more cvars that could boost game fps with those who might be looking for it here. If you want to remove my comments feel free to do so.

I do not know very well why you put that here, but if your intention was to explain that you do some of the commands you should place in the discussion. If your intention was to tell me commands that you would recommend to increase the fps, in that case, some of those commands are already in the configuration and others I do not place them because it depends on which computer or how you want the game to look, which my cfg it is quite neutral between graphics (although technically with just place mat_hdr_level 2 is neutral xd)

//Textures
mat_compressedtextures 1 //Integrated cards are too slow for uncompressed textures
mat_specular 0 //Reduce shiny
mat_showlowresimage 0 //very low quality textures.
mat_mipmaptextures 0 //makes textures look even worse. Character selection screen unusable.
//mat_fastnobump 1
mat_picmip 4 //texture detail setting
mat_parallaxmap 0

datacachesize 128

//Disabling fog/particles
r_decals 5 //number of visible blood, bullet holes, etc.

//Ragdolls
//g_ragdoll_maxcount 0

//Glibs from boxes and such
props_break_max_pieces 0
prop_active_gib_max_fade_time 0
prop_active_gib_limit 0

//Multicore
snd_mix_async 1
mat_queue_mode 2

//Misc
ai_expression_optimization 1 // Disable npc background expressions when you can't see them.
r_drawbatchdecals 0 // Render decals batched.
r_fastzreject -1 // Activate/deactivates a fast z-setting algorithm to take advantage of hardware with fast z reject. Use -1 to default to hardware

//Filtering
mat_hdr_level 0 //Disables HDR
mat_grain_scale_override 1 //Disables film grain. Again.
mat_aaquality 0
mat_antialias 0
mat_disable_fancy_blending 1
mat_forceaniso 0

//Models
r_lod 2 //Level of detail. -8 is best, 8 is worst.
mat_max_worldmesh_vertices 0

//Lighting
r_maxdlights 0 //maximum dynamic lights
r_dynamic 0 //No dynamic lighting
r_shadows 0 //No dynamic shadows
//r_lightinterp 0
mat_filterlightmaps 0
mat_softwarelighting 1 //1 uses CPU over gfx card.
mat_disable_lightwarp 1
r_shadowrendertotexture 0