title: Data Persistence Android
body: <p>I'm developing a social photo app that is like instagram and I need to improve the application performance, to do that I need to persist some data, like timeline feed, photos, messages, etc. 
  I'm already using Shared Preferences to save user informations.</p>
  
  <p>I don't know which is the best way to persist the data, I'm between SQLite or Files, to save the json data or something else.</p>
  
  <p>Which is faster and gives me less trouble?</p>
  
  <p>If somebody could help me I would appreciate it.</p>