Config problem?

I have a Problem with NS, that if i see many Turrets / GL Spam / Rines as Alien (i didnt have the prob as rine)
that i arent move my Mouse for 1 second... its like a lag, but i dont have Choke, Loss or so during these moments...

but sometimes i have choke, but why?

Please see in my Config, can you see my problem?


_snd_mixahead "0.1"
ati_npatch "1.0"
ati_subdiv "2.0"
bgmvolume "1.000000"
bottomcolor "144.889999"
brightness "1.000000"
cl_allowdownload "1"
cl_allowupload "1"
cl_autohelp "1.0"
cl_buildmessages "1"
cl_centerentityid "0.0"
cl_cmdbackup "2"
cl_cmdrate "40"
cl_cmhotkeys "qwerasdfzxcv"
cl_dlmax "756"
cl_download_ingame "1"
cl_dynamiclights "1"
cl_forcedefaultfov "0"
cl_highdetail "1"
cl_himodels "0"
cl_idealpitchscale "0.8"
cl_lc "1"
cl_logocolor "#Valve_Orange"
cl_logofile "lambda"
cl_lw "1"
cl_musicdelay "90.000000"
cl_musicdirectory ""
cl_musicenabled "0"
cl_musicvolume "155.000000"
cl_particleinfo "0"
cl_quickselecttime ".15"
cl_timeout "60"
cl_updaterate "30"
cl_vsmoothing "0.05"
con_color "255 180 30"
console "1"
crosshair "1.000000"
fps_max "100"
fps_modem "0.0"
gamma "3"
gl_dither "1"
gl_flipmatrix "0"
gl_fog "1"
gl_monolights "0"
gl_overbright "0"
gl_polyoffset "4"
hisound "1"
hpk_maxsize "4"
hud_capturemouse "1"
hud_centerid "0"
hud_classautokill "1"
hud_draw "1"
hud_fastswitch "1"
hud_takesshots "0"
joystick "0"
lookspring "0.000000"
lookstrafe "0.000000"
m_filter "0"
m_forward "1"
m_pitch "0.022000"
m_side "0.8"
m_yaw "0.022"
model "barney"
MP3FadeTime "2.0"
MP3Volume "0.8"
mp_decals "300"
name "Rechter Handschuh"
net_graph "3"
net_graphpos "1"
net_scale "5"
r_bmodelhighfrac "5.0"
r_detailtextures "0"
s_a3d "0"
s_automax_distance "30.0"
s_automin_distance "2.0"
s_bloat "2.0"
s_distance "60"
s_doppler "0.0"
s_eax "0"
s_leafnum "0"
s_max_distance "1000.0"
s_min_distance "8.0"
s_numpolys "200"
s_polykeep "1000000000"
s_polysize "10000000"
s_refdelay "4"
s_refgain "0.4"
s_rolloff "1.0"
s_verbwet "0.25"
sensitivity "7.050000"
skin ""
suitvolume "0.250000"
sv_aim "0"
sv_voiceenable "1"
team ""
topcolor "151.169998"
viewsize "110"
voice_enable "1"
voice_forcemicrecord "1"
voice_modenable "1"
voice_scale "1"
volume "1.070000"