BPS0 - very long runtime

Hi gurus,

During the manual planning in BPS0 long runtime occurs.

FOX formulas are used.

There is lot of data selected, but it is business needs.

Memory is OK as I can see in st02 - 10-15% of resources are usually used, no dumps, but very long runtime.

I examine hardware, system, db with different methods, nothing unusual.

Could you please give me more advices, how I can do extra check of the system? (from basis point of view preferably)

BW 3.1. - patch 22

SEM-BW 3.5 - patch 18

Thanks in advance

Elena