This PRX file adds the ability to change the CPU & bus speed of your PSP whilst a game is running, by pressing L TRIGGER + DPAD UP.
The module will switch between the speeds 111/50MHz, 166/80MHz, 222/111MHz, 266/133MHz, and 333/166MHz.
After changing the speed, it is displayed at the bottom of the screen for a few seconds.
This method of printing on top of the screen is not guaranteed between different games, however it appears to work fine with GTA, although it is a little flickery.
INSTALLATION
The plugin is tested and confirmed working under 3.10 OE-A'
USAGE
Just boot up a game, it should display "gamecpu 0.1 loaded...." at the bottom
Then you can press L + UP to switch between CPU speeds; you have to wait 1 second after each change.