Best Settings?

Hi guys. I recently lashed out on a new laptop and am wondering if anyone out there can help me with getting the best out of my machine with this game? I am having problems ingame, either pc's/npc's taking forever to show up (or not showing up at all), or movement being very jerky. Everything looks ok, no graphical glitches, just these problems.


Here are the basics of my machine:

System Name: HP Pavilion dv6 Notebook PC
Processor Name: AMD A8-3530MX APU with Radeon(tm) HD Graphics
BIOS Name: InsydeH2O Version CCB.03.61.09F.02
Video card Name: AMD Radeon 6600M and 6700M Series
Video card Name: AMD Radeon HD 6620G
Installed Memory: 8.00 GB

CPU:
Physical Processors: 1
Logical Processors: 4
Name: AMD A8-3530MX APU with Radeon(tm) HD Graphics
Description: AMD64 Family 18 Model 1 Stepping 0
Manufacturer: AuthenticAMD
Frequency: 1900 MHz
External Clock Frequency: 100 MHz
Processor ID: 178BFBFF - 00300F10

AMD Radeon 6600M and 6700M Series
Name Value Advanced
Chipset Name: AMD Radeon 6600M and 6700M Series
Video Memory: 1,024.00 MB
Compatibility: Advanced Micro Devices, Inc.
DAC Type: Internal DAC(400MHz)
Architecture: VGA
Current Resolution: 1366 x 768
Current Color Mode: 32 bits per pixel
Refresh Rate: 60 Hz
Current Scan Mode: Non-interlaced
BIOS Date: 05/06/11
Installed Drivers: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver Date: 10/3/2011
Driver Version: 8.892.3.0
INF File Name: oem35.inf
INF Section: ati2mtag_VancouverA

AMD Radeon HD 6620G
Name Value Advanced
Adapter Name: AMD Radeon HD 6620Gpe
Chipset Name: AMD Radeon HD 6620G
Video Memory: 512.00 MB
Compatibility: Advanced Micro Devices, Inc.
DAC Type: Internal DAC(400MHz)
Architecture: VGA
BIOS Name: BR40893.bin
BIOS Date: 05/06/11
Pixel Shader Version: 3.0
Vertex Shader Version: 3.0
WDDM Supported: Yes
Installed Drivers: aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
Driver Date: 10/3/2011
Driver Version: 8.892.3.0
INF File Name: oem35.inf
INF Section: ati2mtag_Sumo_Mobile

Hope that helps ^^.
Thanks for any help anyone can give...