DS80PCI800: Asking for the DS80PCI800 schematic review

Hi Team,
Could you please help review the DS80PCI800 schematic?
Questions:
The IC DS80PCI800SQ is use 100ohm characteristic impedance.
The PCIe routing characteristic impedance is 85ohm.
Do you have concern if use 85ohm impedance for this case? Do you have some suggestions for this issue or report we can fellow?

Riser2_2_Repeater_1395A2967801_2017-08-02_2230_decrypted.pdf

Thanks,
SHH