how does the divider work in PID tuning?

I am using NUCLEO-F303RE, X-NUCLEO-IHM08M1, MotorControl Workbench 5.4.4 and STM32CubeMX 5.5.0. I have managed to generate a project as position control and it seems to work fine however I am wondering if I can improve further the performance of the motor by fine tuning the PID controller (for now I just tried some random values). Each parameter of the PID has a divider associated with it and I would like to know how this affects the performance. Once the code is generated the dividers are the followings:

#define SP_KPDIV           16384

#define SP_KIDIV           16384

#define SP_KDDIV           16

#define SP_KPDIV_LOG         LOG2(16384)

#define SP_KIDIV_LOG         LOG2(16384)

#define SP_KDDIV_LOG         LOG2(16)

it is obvious that the LOG has the same value, but what if I change this how will it affect the performance. what values are best to be used?

Thanks in advance for your help.