DSO deletion step in process chain is taking so long

Hi Experts,

We have a deletion step in one of our process chains. It is taking so long nearly 900 secs to complete that step while the other deletion steps are taking only 40-50 secs.

One more point is that it has the data load from other 4 DSO's. In that case also i guess it needs to be completed in ~200 secs, but dont know why it is taking that much long time to complete. Can you please give your views on this?

Thanks in Advance,

Ram