DRV10983: The issue of DRV10983 EVM for motor control

Hi Team,

The customer uses the DRV10983EVM control color wheel motor.
The circuit architecture and DRV10983EVM GUI settings is shown as below:

The customer measured that the FG signal output jitter(278us) of DRV10983 is much larger than the jitter(4.4us) of the input PWM signal.
The measured signal waveforms are shown as below

What other DRV10983 parameters can I adjust to make the jitter of the FG signal smaller and make the Motor speed more stable?

BR,

Jack