Pro-Ject Pre Box S2 Digital

Given the latest Roon release 1.5, what is the preferred setup for the S2 related to MQA? Currently I have DSP enabled (Upsampled to DSD256) and MQA (rendering and decoder) and seems to be working fine playing MQA, the S2 indicates MQB.

So for the S2 owners is that the optimal setup?

Thanks