MPU9150 Configuration for quadcopter Help!

In our project, we use MPU9150 to sense the angles for Quadcopter, but i am a newbie, so i want to ask about how to configure the gyro, accel, and mag for proper operation and quick response of the quadcopter:

  1. What is the sampling rate for the device?
 *          |   ACCELEROMETER    |           GYROSCOPE
 * DLPF_CFG | Bandwidth | Delay  | Bandwidth | Delay  | Sample Rate
 * ---------+-----------+--------+-----------+--------+-------------
 * 0        | 260Hz     | 0ms    | 256Hz     | 0.98ms | 8kHz
 * 1        | 184Hz     | 2.0ms  | 188Hz     | 1.9ms  | 1kHz
 * 2        | 94Hz      | 3.0ms  | 98Hz      | 2.8ms  | 1kHz
 * 3        | 44Hz      | 4.9ms  | 42Hz      | 4.8ms  | 1kHz
 * 4        | 21Hz      | 8.5ms  | 20Hz      | 8.3ms  | 1kHz
 * 5        | 10Hz      | 13.8ms | 10Hz      | 13.4ms | 1kHz
 * 6        | 5Hz       | 19.0ms | 5Hz       | 18.6ms | 1kHz
 * 7        |   -- Reserved --   |   -- Reserved --   | Reserved

What does the Delay collumn mean? Does it affect the quadcopter performance?
3. Anybody say about Digital Low Pass Filter, and how to configure it properly?
4. How the Full scale selection affect the angle reading?