Gson is Google's open-source library for serializing and deserializing Java objects to/from JSON.
A JSON processing library for Java.
"Quick takeaway of the benchmark jackson performs 5 to 6 times better than org.json and more than twice better than gson"
Decode JSON data in Java
"Or switch from org.json to something that performs better such as gson or jackson"
Don't use android's built in org.json