With tweaks it's better

Ok , first of all I have the settings at 'Performance' in Nvidia control panel the rest i'll just copy and paste. Here is a video example of the fps ( allow for compression )

http://www.youtube.com/watch?v=6j0Cfe8ktKo

conf.ini

[window]
DepthBits =24
StencilBits=8
DrawIfNotFocused=0
SaveAspect=0
Render=D3D10_0
width=1280
height=720
ColourBits=32
FullScreen=1
ChangeScreenRes=1

[NET]
speed=100000
localPort=27015
serverName=My Server
serverDescription=IL-2 Sturmovik: Cliffs of Dover
serverInfo1=
serverInfo2=
serverInfo3=
serverInfo4=
VAC=1
maxPlayers=16
socksEnable=0
socksHost=
socksPort=1080
socksUser=
socksPwd=

[Console]
IP=20001
UseStartLog=1
WRAP=1
PAUSE=1
HISTORY=1024
HISTORYCMD=1024
PAGE=20
LOG=0
LOGTIME=0
LOAD=console.cmd
SAVE=console.cmd
LOGFILE=log.txt
LOGKEEP=0

[rts]
tickLen=30
ProcessAffinityMask=15
maxTimerTicksInRealTick=20
; 0 - not use, 1 - show cursor and not capture, 2 - not show cursor, and capture
mouseUse=2
; 0 - not use, 1 - use if hardware exist
joyUse=1
; 0 - not use, 1 - use if hardware exist
trackIRUse=1
DisableIME=0
culture=en-GB

[rts_mouse]
SensitivityX=1.0
SensitivityY=1.0
SensitivityZ=1.0
Invert=0
SwapButtons = 0

[rts_joystick]
FF=1

[core]
DynamicalLights=0 (default =1)
VisibilityDistance=2 (default =4)
ShadowMapSize=3 (default =5)
RandSeed = 0
TexQual=3
TexFlags.PolygonStipple=0
Shadows=1
SpecularLight=2
DiffuseLight=2
DynamicalLights=1
MeshDetail=2
LandShading=2
LandDetails=1
Sky=3
Forest=0
VisibilityDistance=3
LandGeom=2
DrawCollisions=1
Water=-1
Effects=2
EffFlags.Light=1
EffFlags.SpriteRender=0
Grass=-1
CordEffect=1
UseFog=0
UseLandCube=1
UseLandConnectedObject=1
LinearObjectManager=1
Roads=-1
Sun=1
Clouds=1
EffFlags.LightSpritesProj=1
ShadowMapSize=5
TexFlags.AsyncLoad=1
TexFlags.ShowTexture=0
SimpleMesh.SWTransform=0
SimpleMesh.QuadTreeClip=1
SimpleMesh.InstancingHW=1
EffFlags.LightContextSprites=1
CloudsFlags.Detailed=1
TexFlags.CreateHDR=1
Decals=1
EffFlags.SWLight=0
TexFlags.CockpitOnePass=0
MegaTexture=0
TexFlags.Reflection=0
RenderTargetQual=3
MSAA=4
MeshStatics=1
MeshStaticsDetail=1
SimpleMesh.QTNoCompose=0
MeshFirstLod=0
MeshShowLod=0
SpawnHumans=0
TexFlags.FastTransparency=1

[sound]
SoundUse=1
DebugSound=0
SoundEngine=1
Speakers=1
Placement=0
SoundFlags.reversestereo=0
RadioFlags.Enabled=1
RadioEngine=2
MusicVolume=14
ObjectVolume=7
MusState.takeoff=1
MusState.inflight=1
MusState.crash=1
MusFlags.play=1
MasterVolume=14
Attenuation=7
SoundMode=0
SamplingRate=0
NumChannels=2
SoundExt.occlusions=1
SoundFlags.hardware=1
SoundFlags.streams=1
SoundFlags.duplex=1
SoundExt.acoustics=1
SoundExt.volumefx=1
SoundFlags.voicemgr=1
SoundFlags.static=1
VoiceVolume=8
Channels=1
SoundFlags.bugscorrect=0
SoundExt.extrender=0
SoundSetupId=8
ActivationLevel=0.02
Preemphasis=0.8
RadioLatency=0.5
AGC=1
PTTMode=1
RadioFlags.PTTMode=0
RadioFlags.PlayClicks=1
ActLevel=9
MicLevel=10
SoundFlags.UseRadioChatter=0
SoundFlags.AutoActivation=0
SoundFlags.forceEAX1=0
speakers=1