Slowness Observed in createQuery API

With refernce to one of the implementation , I am trying to create Query object for one of the SQL but some how it takes around ~20 seconds to create the same.
Can someone please point as to what is wrong in the implementation or an alternative for the saem

Appreciate help on the same

Query query = getSession().createQuery(queryString.toString());

queryString = select cr from TABLE_A cr left join fetch cr.TABLE_B WHERE cr.transactionTimeStart <= :now and cr.transactionTimeStop > :now and
(( cr.refID='ABC' and cr.refVersion=2 )
( cr.refID='ABC' and cr.refVersion=0 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )
OR
( cr.refID='ABC' and cr.refVersion=1 )...