How can I avoid a delay after logged in facebook successfully?

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Here is my code to redirect HomeActivity after logged in facebook, but it has a delay. Who show me the method to avoid it. Thanks all your helps.

callbackManager = CallbackManager.Factory.create();
    LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(LoginResult loginResult) {
            startActivity(new Intent(getActivity(), HomeActivity.class));
        }

        @Override
        public void onCancel() {
            Log.e("login", "cancel");
        }

        @Override
        public void onError(FacebookException error) {
            Log.e("login", "error");
        }
    });

asked 39 secs ago

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How can I avoid a delay after logged in facebook successfully?