delete operation take long time.

table has 11 lac records. 

delete operation take long time. how to get rid of this issue..?

while investigation using below SQL..

TTITLE "ITL-Waits per table (INITRANS to small)"

set pages 1000

col owner format a15 trunc

col object_name format a30 word_wrap

col value format 999,999,999 heading "NBR. ITL WAITS"

--

select owner,

       object_name||' '||subobject_name object_name,

       value

  from v$segment_statistics

 where statistic_name = 'ITL waits'

 and value > 0

order by 3,1,2;

--

col owner clear

col object_name clear

col value clear

ttitle off

/

OWNER                          OBJECT_NAME                                                        VALUE

------------------------------ ------------------------------------------------------------- ----------

REGISTRY                       SLT_STATUS_PK                                                          1

REGISTRY                       SLT_OBJECTIVE_PK                                                       2