DRV8303: Limits or considerations for small shunt resistor values

Part Number:DRV8303

I have a 300uOhm shunt on the low side of a 3-phase 50A DCBL drive and I'm noticing large nonlinearity and errors in the sensed values read from the chip.

Is there any special requirement and/or consideration for the op-amps of this chip in high current applications when the shunt resistance gets very small?

Thanks,

Mason