DxO Raw3 speed

I have both DxO Raw3 and Photolab 6 elite. Why does Raw3 deeprime xd take much longer to process raw files than when using deeprime xd in Photolab 6? Are there differences between the algorithms?

Perhaps because you have applied other adjustments/corrections in PL (that are not possible with Pure Raw) … and, therefore, it takes some time to process them - in addition to the NR algorithm (?)