psto your device (find in cydia or run
apt-get install psor
aptitude install ps)
- Found SpringBoard's pid (connect to your device via SSH and type
ps -A, then search for SpringBoard)
- Connect to your device with Xcode and in menu "Debug" select "Attach to Process > By Process Identifier (PID)..."
- Input SpringBoard's PID and press "Connect"
- Pause Debugger and run following code in console.
p [(CALayer *)[[[[UIApplication sharedApplication] windows] objectAtIndex:0] layer] setSpeed:.1f]