Pixhawk 1 vs Pixhawk 2.1 Flight performance

Hi. Is there a big difference in the flight performance except from the redundancy factors (tripple imu etc) between pixhawk 1 and the 2.1 cube?

The heater on the Cube enables more stable baro and imu readings, but you need to make sure you wait for the board to get to temp before you calibrate or arm.