Hi Dhanya,
There are various options available in 'Reports' link of the 'Insights and Reports' tab where you can explore various reports from 'Basic reports', 'Advanced Reports', 'Custom and Assist Report's options to understand the overall performance of your campaign or portfolio. Moreover, there is an 'advertising and insights' link as well under 'Insights and Reports' tab where you may find some more performance reports.
Hope this helps.
Regards
Nidhi