DRV7308: Slew rate setting - falling slew rate

Tool/software:

Hello team,

I had a quick question about slew rate control & setting.

Currently my customer is reviewing with our DRV7308, with built PCB.

They have the slew rate set to 10V/ns, and when they measured the slew rate, rising slew rate is 10V/ns, but it seems falling slew rate is slower, at around 5V/ns.

Is the slew rate settings supposed to only be applied to rising slew? Is falling slew rate supposed to be 5V/ns?

(+) The IC's top marking was as below, so I think the IC they are using is the latest 2.0 version sample.)

Thank you.

Best regards,
Jade