Почему на моем компе лагает GTA 4, если:

System Information
------------------
Time of this report: 1/6/2013, 15:21:32
Machine name: SHLIFENN
Operating System: Windows 7 Домашняя базовая 32-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.120830-0333)
Language: Russian (Regional Setting: Russian)
System Manufacturer: MSI
System Model: MS-7740
BIOS: BIOS Date: 08/04/11 17:47:04 Ver: 04.06.04
Processor: Intel(R) Core(TM) i3-2100 CPU @ 3.10GHz (4 CPUs), ~3.1GHz
Memory: 2048MB RAM
Available OS Memory: 2028MB RAM
Page File: 1356MB used, 2701MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

------------
DxDiag Notes
------------
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.

--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

---------------
Display Devices
---------------
Card name: NVIDIA GeForce GTS 450
Manufacturer: NVIDIA
Chip type: GeForce GTS 450
DAC type: Integrated RAMDAC