DRV8353: Question about PWM Noise and Bypass Capacitor of FET's Input

Hi, I am using DRV8353 for motor driver system.

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And found 20kHz PWM Noise from the board.

I put 1uF value for Cbyp, and Cbyp is about 3mm far from the High side Fet.

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Will this position will effect this noise? If I put this Cbyp closer to FET, then will it effect to reduce noise?

I think this is close enough but if this distance(3mm) will effect to noise then I will revision the board and make again.

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Or Should I change the value of Cbyp? Do you think Cbyp's position or value will critically effect to reduce the noise?

Or Any snubber circuit should be added? 

Thanks.