Performance issue

I have one problem when deleting the 1000 records of data in order module it will takes 2-3 hours. Can some one please suggest me how can optimizing time while deleting orders and other records

I’d suggest looking at your server statistics and making sure your server is suitable to host the CRM if you have a large number of records.

There are some configuration values you can change to optimise the CRM, these are as follows:

https://www.siteground.com/kb/how_to_optimize_sugarcrm_for_better_performance/
http://developer.sugarcrm.com/2012/04/17/optimising-sugar/