dm_db_index_physical_stats :Detailed mode

Hi,

 i am using detailed mode in dm_db_index_physical_stats to populate the index fragementation, but detailed mode taking more time than expected. for small database its taking more than 20 mins.. in the insrance i ahve 8 DB..

can you please suggest something which can improve the performance.

But i need to capture all the index.

Thanks in advance.