Parameters Tuning for RTK GPS

Im trying to configurate RTK GPS using a pair of u-blox M8P devices, and need some help.
Can I use a telemetry link for the communication between the vehicle and QGC?
Which parameters should I tune to ensure the performance of the vehicle?

Some suggestions for tuning EKF2 for RTK from @Paul_Riseborough here - EKF2 and uBlox M8P RTK
EKF2 and uBlox M8P RTK

@dagar Thanks for your help, it is really helpful for me, and im trying to tuning my vehicle according to the advices.