TPD6S300A: PD can't respond GOODCRC in a certain of probrability

Tool/software:

Hi team,

we find our PD can't respond GOODCRC in a small fail rate or respond it with very long delay.

we suspect this might be a signal integrity problem that result from the CC protection insertion loss/delay and the poor layout .

do you know if there's a way we can clear this out or improve the signal integrity problem of CC signal?