Insertion of thousands of contact entries using applyBatch is slow

Question

I\'m developing an application where I need to insert lots of Contact entries. At the current time approx 600 contacts with a total of 6000 phone numbers. The biggest contac

Answer 1

Just for the information of the readers of this thread.

I was facing performance issue even if using applyBatch(). In my case there was database triggers written on one of the table. I deleted the triggers of the table and its boom. Now my app insert rows with blessing fast speed.