Dear Madhukar,
I agree with you , that performance tuning is much required while you are working on 0IC_C03.
- Here check whether BIA is there with your client or not.
- If you are taking about aggregates exclusively - check the granularity of your report. Then create aggregates on that infoobject.
- Also check query proprieties at RSRT.
- Regarding compression:
All inventory requests (deltas of BX/UM) should compress with marker update. Then there is no point of special precautions to take regarding 0IC_C03. It is mandatory to compress.
Regards, Vijay