(Bloomberg) -- Private credit lenders are taking steps to raise their appeal in a market where the promise of lower interest rates are allowing banks to stage a comeback.Most Read from BloombergPutin Sends US Signal on Ukraine Talks, Seeing War AdvantageOne of World’s Richest Doctors Sees Fortune Surge to $12 BillionJPMorgan Shuffles Top Managers as Jamie Dimon Prepares SuccessorsUN Court Tells Israel to Protect Gazans, Avoids Cease-FireAt a time when the likes of Barclays Plc and Citigroup Inc.