Why are my accelerometers responding so slowly?

I am asking them at 50Hz / 50 times per second for data. When I suddenly flip the device along the x-axis 90 degrees until the device is flat on the table with the display facing up, the values ​​move rather slowly towards the "target" value for that position.

Now the weird thing is that if I increase the measurement speed, the value will move faster towards this new value when the device is suddenly flipped 90 degrees. But if I just ask once per second for a new value, it will take a very long time until the value reaches the target. What could be causing this?

I am not doing any data aggregation and am not accumulating anything. I am just doing some simple filtering to get rid of the noise. My method looks like this:

- (void)accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration {
    // Use a basic low-pass filter to only keep the gravity in the accelerometer values for the X and Y axes
    // accelerationX is an instance variable
    accelerationX = acceleration.x * 0.05 + accelerationX * (1.0 - 0.05);

    // round
    int i = accelerationX * 100;
    float clippedAccelerationValue = i;
    clippedAccelerationValue /= 100;

    [self moveViews:clippedAccelerationValue];
}

      

        
        
        
      

    

later, in my -moveViews: method, I do this:

-(IBAction)moveSceneForPseudo3D:(float)accelerationValue {
    if(fabs(lastAccelerationValue - accelerationValue) > 0.02) { // some little treshold to prevent flickering when it lays on a table
        float viewAccelerationOffset = accelerationValue * 19 * -1;

        newXPos = initialViewOrigin + viewAccelerationOffset;
        myView.frame = CGRectMake(newXPos, myView.frame.origin.y, myView.frame.size.width, myView.frame.size.height);

        lastAccelerationValue = accelerationValue;
    }
}

      

        
        
        
      

    

As a result, the device rotates 90 degrees x-achsis or 180 degrees, the view just moves rather slowly to the target position. I don't know what it is because of the physics of the accelerometers, or if this is a bug in my filtering code. I only know that there are fast games that use accelerometers for control, so I can hardly imagine what the problem is with the hardware.