Hi Shammi,
You do not need to change the technical settings of a table. The column store is used by SAP (new technology introduced with SAP HANA) in order to provide better compression and performance, while using the table into our ABAP code.
Please leave it as it is because SAP ensures the best performance for the reports in this way.
While creating a new custom table, you can choose the option between column store and row store based on the type of data the table contains.
In case, the table contains Master & Organizational data then use Columnar store and for transnational data (since they change frequently) use row store.
Hope this answers your question.
Regards,
Arnab