Webi report performance

Hi All,

I have few doubts regarding report performance, it would be great if someone can help:

In a webi document that I am working on there are around 40 queries. I have to add tables for those 40 queries in a document.

Which is better option from below wrt to performance:

1. To add tables in separate reports(different tabs) 

2. To add tables in same report(tab)

Thanks,

Ketan