Batch filtering/Fast IMU Noise limits

So when measuring vibration - docs say X/Y should be +/- 3 and Z (-5-15) - when looking at Fast IMU is there values that should make you consider working to improve vibration? For instance I am seeing on a vehicle I’m flying the RAW ACC X/Y is about +/- 40 and Raw GYR Z +/- 2. When I saw these for first time I was very surprised as how well the GYR_Filt and ACC_filt work. When Fast IMU is not enabled and I’m looking at the filtered imu the imu readings are in range as described. But I did have to lower the FILT settings from 20 down to 10.