EchoRSS importing is duplicating content Images

Hello, The folder that EchoRSS creates to import the media content from the RSS is duplicating images inside the folder "Echo". This unfortunately is making my website running out of space quite fast. How can I prevent: 1. EchoRSS to duplicate importing content. 2. Show images the imported images in Media so I can compress or be able to serve the content in using some cloud storage service.