Does change in PCI in LTE will lead to change in Traffic and TA pattern?

Hi Experts.

Does change in PCI in LTE will lead to change in Traffic and TA pattern?

Vendor Huawei.
Scenario is 450 cells city and out of 450 only on 7 cells PCI Changed.
These cases making co PCI between distance range from 1km to 9km.
Traffic checked only on these 7 cells.

Check for any change in HO’s profile after PCI retune.

HO attempts and success reduced, but failures improved.