ibook g4 1.33ghz 12inch 1.5gb

hi all just want to know if there a way to speed up my ibook g4 1.33ghz 12inch 1.5gb with ati radeon 9550???

here the spect..

Hardware Overview:

Machine Name: iBook G4
Machine Model: PowerBook6,7
CPU Type: PowerPC G4 (1.2)
Number Of CPUs: 1
CPU Speed: 1.33 GHz
L2 Cache (per CPU): 512 KB
Memory: 1.5 GB
Bus Speed: 133 MHz
Boot ROM Version: 4.9.3f0
Sudden Motion Sensor:
State: Enabled
Version: 1.0


with

ATI Mobility Radeon 9550:

Chipset Model: ATY,M12
Type: Display
Bus: AGP
VRAM (Total): 32 MB
Vendor: ATI (0x1002)
Device ID: 0x4e56
Revision ID: 0x0080
ROM Revision: 113-xxxxx-117
Displays:
Color LCD:
Display Type: LCD
Resolution: 1024 x 768
Depth: 32-bit Color
Built-In: Yes
Core Image: Supported
Main Display: Yes
Mirror: Off
Online: Yes
Quartz Extreme: Supported
Display:
Status: No display connected

DIMM0/BUILT-IN:

Size: 512 MB
Type: Built-in
Speed: Built-in
Status: OK

DIMM1/J7:

Size: 1 GB
Type: DDR SDRAM
Speed: PC2700U-25330
Status: OK


a big thanks thank you