Describe the drawbacks of the Phone Gap?

As JavaScript is used on the front end, it has some drawbacks too.
Following are the few drawbacks of Phone Gap:

• Data processing: In comparison with JavaScript, the native language is much faster.
• Background processing:  The large number of applications are dependent on the background thread while Phone Gap API is built by using JavaScript that doesn’t support any multi-threaded options and hence it doesn’t support the background processing as well.
• Advanced graphics:  The applications that use the advanced graphics can easily be accessed by the third-party libraries and can also be done natively.
• Complex business logic: A large number of complex business applications can be accessed better with a native code.
• Access advanced native functionality: A large number of native API’s are not supported by the Phone Gap’s API.