Reports on Web Application

Hi,

I have a Web Application (Classic ASP) with credentials control.

This application has a lot of reports that use the same database of the application and we having problems with performance to generate the reports and to use others functions in the application.

Questions:

1 - Is the Reporting Services the right solution for me? What about the BIDS (Business Intelligence Development Studio)?

2 - Is there a way to send only the data that my client can view, and let him manipulate them consuming CPU and Memory of his computer?

Tks