Problem with the graphical performance of Automation

So my problem is that the game starts to lag pretty heavily when I set the quality slider to max once the Screen Space Ambient Occlusion is also enabled. This lag appears when looking at the engine from different angles and also there are small pauses between the changes of the engine sounds when rising the engine rpm in benchmark. However, if I disable the Screen Space Ambient Occlusion then it runs ok, -OR- if I keep the Screen Space Ambient Occlusion enabled and take just one notch away from the top quality, then it also runs smooth.
My system:
i7 2600K OC’d to 4.3 MHz
GTX 470 Stock
4Gt RAM
Win7
Intel SSD
1920 x 1200
Recommended Requirements:
Operating System: Microsoft Windows XP/Vista/7
Processor: Quad Core
Ram: 2gb
Graphics Device: NVidia 260GTX/ATI Radeon 4870 (Must support Pixel Shader 3.0)
Internet Access
So my question is that is this normal that Automation wont run at its full glory with this kind of system? Or is there a possible problem with the graphical performance of Automation? Since I belive im well over the recommended specs with my system.
My system:
i7 2600K OC’d to 4.3 MHz
GTX 470 Stock
4Gt RAM
Win7
Intel SSD
1920 x 1200
Recommended Requirements:
Operating System: Microsoft Windows XP/Vista/7
Processor: Quad Core
Ram: 2gb
Graphics Device: NVidia 260GTX/ATI Radeon 4870 (Must support Pixel Shader 3.0)
Internet Access
So my question is that is this normal that Automation wont run at its full glory with this kind of system? Or is there a possible problem with the graphical performance of Automation? Since I belive im well over the recommended specs with my system.