Oracle 11 table design for better performance for reports?

We have a requirement to design a report page.

A few factors we have are:

1. number of fields in report is 70
2. computed fields is going to around 14*8 (based on toggles)
3. a filter is going to have around 30 fields

Given this we have decided to come up with a physical table only for the computed fields.
Question I have is for performance purpose, is it better to fetch the 14*8 as columns given the huge data size or is it better to have this as 14 columns and 8 rows.