Tarot 680 Pro with Pixhawk 2.1 and Here GPS Bad Variance detected

Hello,

my configuration is:

Tarot 680 pro

Tarot 4006 620KV

T-Motor 30A BLHeli_S ESC's

Tarot 1355 Props

FR-Sky X8R

Taranis X9D

5000mAh 4S1P ACCU

Could you please tell my why my quad isn't Flying as good as suggested?

I've configured the Pixhawk2.1 with MOT_PWM_

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