How to improve the performance of Database

Hi all,

  Reporting Database backup from OLTP database daily morning,from reporting DB users are spooling the report.But Reporting DB is always slow (Death).User can't spool any reports.

Here details:-

DB size:120GB(mdf),20GB(ldf) seperate drive

Max degree of Parallelism -0

Cost threshold of parallelism-25

Any important settings i need to check or how can i improve my database performance.

Thanks

Thanks - SelvaKumarSubramaniam.Please MARK AS ANSWER, if my answer is useful to U.