Android异步任务延迟[需要建议]

Question

我正在开发一个使用AsyncTask的Android应用程序。 问题是AsyncTask响应很慢，具有相当高的延迟，因此例如通过检查用户名和密码是否与数据库密码是正确的，因为延迟会导致用户无需验证即可自动登录或有时从不登录，因为这些信息将花费很长时间。

代码示例：

public JSONArray checkLogin(String username, String password) {
    // URL for getting all customers
    String url = endereco+"/Functions.php?checkLogin=1&username="+username+"&password="+password;
    // Get HttpResponse Object from url.
    // Get HttpEntity from Http Response Object
    HttpEntity httpEntity = null;
    try {
        DefaultHttpClient httpClient = new DefaultHttpClient();  // Default HttpClient
        HttpGet httpGet = new HttpGet(url);
        HttpResponse httpResponse = httpClient.execute(httpGet);
        httpEntity = httpResponse.getEntity();
    } catch (ClientProtocolException e) {
        // Signals error in http protocol
        e.printStackTrace();
        //Log Errors Here
    } catch (IOException e) {
        e.printStackTrace();
    }
    // Convert HttpEntity into JSON Array
    JSONArray jsonArray = null;
    if (httpEntity != null) {
        try {
            String entityResponse = EntityUtils.toString(httpEntity);
            Log.e("Entity Response  : ", entityResponse);
            jsonArray = new JSONArray(entityResponse);
        } catch (JSONException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return jsonArray;
}

如何绕过延迟？