Sales Analysis Report export to Excel Slow Issue

Hi Group,

Client has given me backup …i restored that backup in Classis type DB and SQL type DB…but while running Sales Analysis report in 2 type of DB’s…it takes just 1 min in classic DB where as it takes 20 min in SQL DB.(to generate Excel Sheet with data)
Please tell me the problem regarding why it takes so much time in SQL DB.

Note:Same Data in both type of DB’s


Whether SQ L DB is restored on Another machine or same machine??

Thanks for Reply…on Same machine…