ppsspp stopped working after i changed the settings

[deimos_styx]

please help me guys, i've played crisis core for 2 days and it's working, but after i searched how to make ppsspp faster, and i changed the settings, my crisis core always stopped working in the middle (after 1-2 minute gameplay)
please help me,still beginner, thanks.

my ppsspp version is v0.9.9.1
here my old laptop specs :
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System Information
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Time of this report: 10/11/2014, 15:51:23
Machine name: xxx-PC
Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_gdr.140303-2144)
Language: English (Regional Setting: English)
System Manufacturer: TOSHIBA
System Model: Satellite L310
BIOS: PhoenixBIOS 4.0 Release 6.1
Processor: Pentium® Dual-Core CPU T4200 @ 2.00GHz (2 CPUs), ~2.0GHz
Memory: 3072MB RAM
Available OS Memory: 2936MB RAM
Page File: 2185MB used, 3686MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
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
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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)

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Display Devices
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Card name: Mobile Intel® 4 Series Express Chipset Family
Manufacturer: Intel Corporation
Chip type: Mobile Intel® 4 Series Express Chipset Family
DAC type: Internal
Device Key: Enum\PCI\VEN_8086&DEV_2A42&SUBSYS_FF511179&REV_07
Display Memory: 1340 MB
Dedicated Memory: 128 MB
Shared Memory: 1212 MB
Current Mode: 1280 x 800 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor
Monitor Model: unknown
Monitor Id: SEC3341
Native Mode: 1280 x 800(p) (60.004Hz)
Output Type: Internal
Driver Name: igdumdx32.dll,igd10umd32.dll
Driver File Version: 8.15.0010.2202 (English)
Driver Version: 8.15.10.2202
DDI Version: 10
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 8/25/2010 19:28:22, 571904 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B78E66-6902-11CF-537A-5BDFA7C2C535}
Vendor ID: 0x8086
Device ID: 0x2A42
SubSys ID: 0xFF511179
Revision ID: 0x0007
Driver Strong Name: oem17.inf:Intel.Mfg:iCNT0:8.15.10.2202:pci\ven_8086&dev_2a42
Rank Of Driver: 00E62001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeWMV9_B ModeWMV9_C ModeVC1_B ModeVC1_C