Good fps but bad stutters mainly when taxiing

Hello everyone,

I know that this subject has been adresses hundreds of times but i still i cant find any way to eliminate stutters in fsx even if i have great fps. My fps are locked internally at 30 and i have 1/2 refresh rate vsync with Nvidia inspector. I tried a few teaks to get ridd of those nasty stutters but nothing really worked for me. I also know that each case is different, thats why i am linking here my specs and my cfg. If any body have an idea about how to eliminate or decrease the stutters i would be eternally greatful.

Have a nice day !

Specs: gtx 660

            i54670k 3,4ghz OC at 4,4ghz

            8g RAM

            windows 7 64

CFG:

[JOBSCHEDULER]
AffinityMask=14
[bUFFERPOOLS]
Poolsize=0
[GRAPHICS]
HIGHMEMFIX=1
SHADER_CACHE_PRIMED_10=1693500672
SHADER_CACHE_PRIMED=1693500672
D3D10=0
TEXTURE_MAX_LOAD=4096
NUM_LIGHTS=8
AIRCRAFT_SHADOWS=0
AIRCRAFT_REFLECTIONS=1
COCKPIT_HIGH_LOD=1
LANDING_LIGHTS=1
AC_SELF_SHADOW=0
EFFECTS_QUALITY=2
GROUND_SHADOWS=0
TEXTURE_QUALITY=3
IMAGE_QUALITY=0
See_Self=1
Text_Scroll=1
[sOUND]
AmbientUIMusicVolume=-6.000000
PrimaryDevice={DEF00000-9C6D-47ED-AAF1-4DDA8F2B5C03}
VoiceDevice={DEF00002-9C6D-47ED-AAF1-4DDA8F2B5C03}
SOUND=1
SOUND_QUALITY=2
SOUND_LOD=0
UISound=0
AmbientUI=0
SOUND_FADER1=0.500000
SOUND_FADER2=0.500000
SOUND_FADER3=0.500000
SOUND_FADER4=0.500000
AmbientUIMusic=FSX01
[Display]
ChangeTime=4.000000
TransitionTime=4.000000
ActiveWindowTitleTextColor=255,255,255
ActiveWindowTitleBackGroundColor=0,28,140,64
NonActiveWindowTitleTextColor=255,255,255
NonActiveWindowTitleBackGroundColor=24,33,87,64
InfoUpperRightTextColor=255,0,0
InfoUpperRightBackGroundColor=0,0,0,0
InfoLowerLeftTextColor=255,255,255
InfoLowerLeftBackGroundColor=255,0,0,128
InfoLowerRightTextColor=255,255,255
InfoLowerRightBackGroundColor=255,0,0,128
InfoBrakesEnable=True
InfoParkingBrakesEnable=True
InfoPauseEnable=True
InfoSlewEnable=True
InfoStallEnable=True
InfoOverspeedEnable=True
BLOOM_EFFECTS=0
SKINNED_ANIMATIONS=1
TEXTURE_BANDWIDTH_MULT=40
UPPER_FRAMERATE_LIMIT=30
WideViewAspect=True
[Main]
HideInfoText=1
DISABLEPRELOAD=1
User Objects=Airplane, Helicopter
SimObjectPaths.0=SimObjects\Airplanes
SimObjectPaths.1=SimObjects\Rotorcraft
SimObjectPaths.2=SimObjects\GroundVehicles
SimObjectPaths.3=SimObjects\Boats
SimObjectPaths.4=SimObjects\Animals
SimObjectPaths.5=SimObjects\Misc
ProcSpeed=19051
PerfBucket=7
HideMenuNormal=0
HideMenuFullscreen=1
FIBER_FRAME_TIME_FRACTION=0.18
Maximized=1
Location=654,172,1694,950,\\.\DISPLAY1
[PANELS]
IMAGE_QUALITY=1
DEFAULT_VIEW=0
QUICKTIPS=1
PANEL_OPACITY=100
PANEL_MASKING=1
PANEL_STRETCHING=1
UNITS_OF_MEASURE=0
[Weather]
WindshieldPrecipitationEffects=1
MinGustTime=10
MaxGustTime=500
MinGustRampSpeed=1
MaxGustRampSpeed=200
MinVarTime=5
MaxVarTime=50
MinVarRampSpeed=10
MaxVarRampSpeed=75
TurbulenceScale=1.000000
WeatherServerAddress=fs2k.zone.com
WeatherServerPort=80
WeatherGraphDataInDialog=0
AdjustForMagVarInDialog=1
DynamicWeather=0
DownloadWindsAloft=0
DisableTurbulence=0
CLOUD_DRAW_DISTANCE=3
DETAILED_CLOUDS=1
CLOUD_COVERAGE_DENSITY=8
THERMAL_VISUALS=0
[DISPLAY.Device.NVIDIA GeForce GTX 660  .0]
Mode=1680x1050x32
TriLinear=1
[AccelerationPack]
ControlsFirstRun=0
HomePageFirstRun=0
[CONTROLS]
Controls_Default=Standard
Controls_Current=Standard
KBDAIL=64
KBDELEV=64
KBDRUD=64
[TextInfo.1]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
WindDirectionAndSpeed=1,6
[TextInfo.2]
FrameRate=1,1
LockedFrameRate=1,2
GForce=1,3
FuelPercentage=1,4
[TextInfo.3]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
WindDirectionAndSpeed=1,6
FrameRate=2,1
LockedFrameRate=2,2
GForce=2,3
FuelPercentage=2,4
[slewTextInfo.1]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
[slewTextInfo.2]
FrameRate=1,1
LockedFrameRate=1,2
[slewTextInfo.3]
Latitude=1,1
Longitude=1,2
Altitude=1,3
Heading=1,4
AirSpeed=1,5
FrameRate=2,1
LockedFrameRate=2,2
[Trusted]
D:\FSX\ORBX\FTX_AU\FTXAA_ORBXLIBS\Scenery\ObjectFlow.dll.khautrcabecniobuuuzcaktclwwcrnlqhzirlolz=1
D:\FSX\ORBX\FTX_NA\FTX_AA_CYSE\scenery\Objectflow_CYSE.dll.khautrcabecniobuuuzcaktclwwcrnlqhzirlolz=1
D:\FSX\bglmanx.dll.boleawucqtalbtnzrizbnkzrtqntauarqwutnnib=1
D:\FSX\Aerosoft\Flight Recorder\AS-FlightRecorder.dll.ncrqtqunboieqkubbtrlonckaoqbzcqoccrbazho=1
D:\FSX\RAASPRO\RAASPRO.dll.quiuaeuawrbetbuqctinauzqzaawtwhtocqcelzw=1
D:\FSX\Modules\A2A_Feel.dll.nlbzattbbbqaeuebnbnokzcroikwoauzlchuhwai=1
D:\FSX\Modules\AccuFeelMenu.dll.trewetholkeobnqitblzbuzcutebuaitqloqltce=1
D:\FSX\PMDG\DLLs\PMDGOptions.dll.azrahkiukzhckznnlakclbqllwohwhqcuqekbrnk=1
D:\FSX\PMDG\DLLs\PMDGEvents.dll.twtkontrkooikzrwbrhnkhntqoeieawbrtokclrk=1
D:\FSX\PMDG\DLLs\PMDGSounds.dll.wqihzatcckqqcurrwqlkteqliucquzwuihqhaewh=1
D:\FSX\Modules\FSUIPC4.dll.kwetnoehqlnlrzqbkqhalilqttohwilabkwqoeqt=1
D:\FSX\GAUGES\RadioC337.DLL.becuilewulhhwwzrewoczeqhuubzwrwueobuqqtw=2
D:\FSX\GAUGES\CC337.DLL.oniwzakuthoqntlqeriiwhbhqwoownctcrbutkih=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus X Extended Base/Panel_Fallback/DLLs/FMGS.DLL.qbtkwttlqoitenuraiacoqllqarhlhaqkonruwth=2
D:\FSX\Aerosoft\Flight Recorder\AS-FlightRecorder.dll.utzbheaznuoqrukorhrbqklrzebwacncratbqlna=1
D:\FSX\RAASPRO\RAASPRO.dll.eczhtzzzwkeaabqihzkcbniunncuqkbteeoblhrt=1
D:\FSX\SimObjects\Airplanes\Aerosoft Airbus X A320 Extended CFM\panel\ASC.DLL.itocohhuccknriuhqwhuunraerlkwbhttcbaekzw=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus X Extended Base/Panel_Fallback/ND/AB_ND_GDI.DLL.qrbauzirqtweoannknululwwltotzhweaatlkkqo=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus X Extended Base/Panel_Fallback/DLLs/AsInput.DLL.thoncactbacnioqunicoccecbztreouochbcuuqh=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus X Extended Base/Panel_Fallback/DLLs/FBW.DLL.bbohtltwcekrukhrnoalbhikbuhlbnrthcztutwr=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus X Extended Base/Panel_Fallback/AirbusXE.DLL.ikukueokkacwhlcilukltwcctlzetlawbnzkltan=2
D:\FSX\SimObjects\Airplanes\IRIS C-27J Spartan\panel\C27J_Sound.DLL.ikbtbabqrwwrehekaqhozcbuqtnkbztthqwtkrbl=2
D:\FSX\GAUGES\QWBae146_2.GAU.lrthttwaiwiontzuaotlecikowebhznoctrbakae=2
D:\FSX\GAUGES\QWBae146.GAU.qlboechonaztczkrcwzwhqhizwrztaonhozbznot=2
D:\FSX\GAUGES\QwBAe146_TCAS.GAU.uckrinkcwaqitncqbbrcktaueqtahhhwwrzwlruz=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/DLLs/FMGS.DLL.cntcaauotrklqkohezwuhhlequiqaoucluozhbri=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/Airbus_ECAMD2D.DLL.oqlqkbiwaiznchctuqlrinhaohbcunlhoutzlath=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/ASC.DLL.iiqtrhkteeqrcwbznzblithqnizctnqknubzkoez=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/ND/AB_ND_GDI.DLL.cwtezowlalbrcororkbrqiwoqziuuthukzruzaqb=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/DLLs/AsInput.DLL.bwheiecqihwuekhcerqbhbzohheuokkcuewkqclc=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/DLLs/FBW.DLL.hkclnziniuzcbrbqctwhekkktaqirihkaiwwilln=2
D:\FSX\GAUGES\../SimObjects/Airplanes/Aerosoft Airbus A318_A319 Base/Panel_Fallback/AirbusXE.DLL.ttlnhootaqabaiclrhctrbccriqkhwwtwroialak=2
D:\FSX\SimObjects\Airplanes\Aerosoft Airbus X A320 Extended CFM NEO\panel\ASC.DLL.itocohhuccknriuhqwhuunraerlkwbhttcbaekzw=2
D:\FSX\GAUGES\Radio_C195.DLL.razuicquzhciaurborabukentlnenkziwrnklutc=2
D:\FSX\GAUGES\ALSound_C195.DLL.ribaiheokhwlaatibrinuwerchukltntoeeletok=2
D:\FSX\GAUGES\ALAC195.DLL.wunruhnlqwrnorcrwqzzhcokzhuulqtatubnltrq=2
D:\FSX\GAUGES\Bendix_King_Radio.DLL.wtzuulhlqtzzthlezwlqnewutlqlowlttuqonbhe=2
D:\FSX\SimObjects\Airplanes\MilViz P38 Lightning\panel.Restored\MilVizC310.GAU.krekowezenikahluhrruuwccubuqqoqnhznewrla=2
D:\FSX\GAUGES\fa-18.DLL.qoizciaznhuanlzkwbahzwokoblaureiwiuitocq=2
D:\FSX\PMDG\DLLs\PMDG_HUD_interface.dll.cbinzeuiultlalwnriewrkckekwkblerwceehhlu=1
D:\FSX\GAUGES\PMDG_737NGX.DLL.labqtbbenhqatucbtollklaokuzbwenhotwuuciz=2
D:\FSX\GAUGES\PMDG_737NGX.DLL.ozokilnatzrhleahkbarbblzilbkknkzoatunuce=2
D:\FSX\GAUGES\PMDG_737NGX_3.DLL.irkkbhwitktlrkbwbkrnanbrutakzalrbewthqkk=2
D:\FSX\SimObjects\Airplanes\Aerosoft Airbus X A320 Extended IAE\panel\ASC.DLL.itocohhuccknriuhqwhuunraerlkwbhttcbaekzw=2
D:\FSX\SimObjects\Airplanes\Aerosoft Airbus X A321 Extended IAE\panel\ASC.DLL.itocohhuccknriuhqwhuunraerlkwbhttcbaekzw=2
[DynamicHeadMovement]
LonAccelOnHeadLon=-0.020000
LonAccelOnHeadPitch=-0.010000
RollAccelOnHeadLat=0.010000
YawAccelOnHeadLat=-0.100000
RollAccelOnHeadRoll=0.100000
MaxHeadAngle=5.000000
MaxHeadOffset=0.300000
HeadMoveTimeConstant=1.000000
[VirtualCopilot]
VirtualCopilotActive=1
[uSERINTERFACE]
PageID=1
SHOW_MISSION_CAPTIONS=1
PAUSE_ON_LOST_FOCUS=1
PROMPT_ON_EXIT=1
SITUATION=FLIGHTS\OTHER\FLTSIM
Map_Orientation=2
OpenATCOnCreate=0
ShowAllACPaintSchemes=1
SelectAircraftManufacturer=Tous
SelectAircraftPublisher=Tous
SelectAircraftType=Tous
DisplayFuelAsWeight=1
[ATC]
ShowATCText=1
COMM_MSG_NONE_COLOR=FFFFFFFF
COMM_MSG_ATC_USER_COLOR=FFB6FFB6
COMM_MSG_USER_ATC_COLOR=FFFFD21B
COMM_MSG_ATC_AI_COLOR=FF00FF00
COMM_MSG_AI_ATC_COLOR=FFFF7840
AutoOpenAirTrafficWindow=1
UsePilotVoice=1
PilotVoice=0
[PointOfInterestSystem]
CycleSetting=0
[sCENERY]
LENSFLARE=1
DAWN_DUSK_SMOOTHING=1
IMAGE_COMPLEXITY=4
[TrafficManager]
AirlineDensity=0
GADensity=0
FreewayDensity=0
ShipsAndFerriesDensity=0
LeisureBoatsDensity=0
IFROnly=0
AIRPORT_SCENERY_DENSITY=0
[TERRAIN]
LOD_RADIUS=5.500000
MESH_COMPLEXITY=90
MESH_RESOLUTION=23
TEXTURE_RESOLUTION=28
AUTOGEN_DENSITY=3
DETAIL_TEXTURE=1
WATER_EFFECTS=6
[AContain]
ShowLabels=0
ShowUserLabel=0
ShowLabelManufacturer=1
ShowLabelModel=1
ShowLabelTailNumber=0
ShowLabelDistance=1
ShowLabelAltitude=1
ShowLabelAirline=0
ShowLabelAirlineAndFlightNumber=0
ShowLabelFlightPlan=0
ShowLabelContainerId=0
ShowLabelAirspeed=0
ShowLabelHeading=0
LabelDelay=1000
LabelColor=FFFF0000
[iNTERNATIONAL]
ASLAT=2
ASLON=0
MEASURE=0
[REALISM]
PFactor=0.000000
Torque=0.000000
GyroEffect=0.000000
CrashTolerance=0.000000
General=0.000000
UnlimitedFuel=True
AllowEngineDamage=False
TrueAirspeed=False
AutoCoord=False
RealMixture=False
StressDamage=False
GEffect=False
ManualLights=False
GyroDrift=False
CrashWithDyn=False
CrashDetection=False
AutoTrim=False
[sIM]
SYSCLOCK=1
[sTARTUP]
DEMO=0
SHOW_OPENING_SCREEN=1
STARTUP_DEMO=
LoadWindow=1
[FACILITIES]
COUNTRY=
STATE=
CITY=
GTL_BUTTON=1326
[Misc]
Com_Rate=7
[FlightPlanMap]
LineWidth=2
SHOW_AIRPORTS=1
SHOW_VORS=1
SHOW_NDBS=1
SHOW_APPROACHES=1
SHOW_INTERSECTIONS=1
SHOW_VICTOR=0
SHOW_JET=0
SHOW_AIRSPACE=1
SHOW_FLIGHTPLAN=1
SHOW_WEATHERSTATIONS=1
SHOW_WEATHERSYSTEMS=1
SHOW_DATATAGS=1
SHOW_TERRAIN=1
show_waypoints=1
show_airways=1
show_markers=1
show_volume_boundaries=1
show_ac_twr=1
[MULTIPLAYER]
condAccoutPassword=0