加载RecyclerView非常慢

我的应用程序性能有问题,我可以在视图中加载数据,但是,生成列表需要两分钟以上的时间。这是因为我的代码没有得到很好的优化吗?

下面是我的活动,我称之为 RecyclerView 在…上

public class ResultsActivity extends AppCompatActivity {

    private RecyclerView rlist;

    private LinearLayoutManager linearLayoutManager;
    private DividerItemDecoration dividerItemDecoration;
    private List<Riders> ridersList;
    private RecyclerView.Adapter adapter;

    public static Intent makeIntent(Context context) {
        return new Intent(context, ResultsActivity.class);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_results);

        rlist = findViewById(R.id.recycler_view);
        ridersList = new ArrayList<>();
        adapter = new RidersAdapter(getApplicationContext(),ridersList);
        linearLayoutManager = new LinearLayoutManager(this);
        linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
        dividerItemDecoration = new DividerItemDecoration(rlist.getContext(),linearLayoutManager.getOrientation());

        rlist.setHasFixedSize(true);
        rlist.setLayoutManager(linearLayoutManager);
        rlist.addItemDecoration(dividerItemDecoration);
        rlist.setAdapter(adapter);

        getData();
    }

    private void getData(){
        final ProgressDialog progressDialog = new ProgressDialog(this);
        progressDialog.setMessage("Loading results...");
        progressDialog.show();

        JsonArrayRequest jsonArrayRequest = new JsonArrayRequest(url, new Response.Listener<JSONArray>() {
            @Override
            public void onResponse(JSONArray response) {
                for (int i = 0; i < response.length(); i++){
                    try {
                        JSONObject jsonObject = response.getJSONObject(i);

                        Riders riders = new Riders();
                        riders.setName(jsonObject.getString("Full_Name"));
                        riders.setClub(jsonObject.getString("Club"));
                        riders.setFinishPosition(jsonObject.getString("Finish_Position"));

                        ridersList.add(riders);
                    } catch (JSONException e){
                        e.printStackTrace();
                        progressDialog.dismiss();
                    }
                }
            }
        }, new Response.ErrorListener(){

            @Override
            public void onErrorResponse(VolleyError error) {
                Log.e("Volley", error.toString());
                progressDialog.dismiss();
            }
        });
        RequestQueue requestQueue = Volley.newRequestQueue(this);
        requestQueue.add(jsonArrayRequest);
    }
}

Json正在以这种格式加载

"[{"Full_Name":"Sam sam",
"Club":"Club",
"Finish_Position":"1"
},
{  
"Full_Name":"Chris Chris",
"Club":"Club",
"Finish_Position":"2"
}"

都是一根大绳子,没有断线什么的?任何帮助都将不胜感激。

适配器为-

public class RidersAdapter extends RecyclerView.Adapter<RidersAdapter.MyViewHolder> {

    private List<Riders> ridersList;
    private Context context;

    public class MyViewHolder extends RecyclerView.ViewHolder {
        public TextView title, position, club;

        public MyViewHolder(View view) {
            super(view);
            title = (TextView) view.findViewById(R.id.main_title);
            club = (TextView) view.findViewById(R.id.main_rating);
            position = (TextView) view.findViewById(R.id.main_year);
        }
    }


    public RidersAdapter(Context applicationContext, List<Riders> ridersList) {
        this.ridersList = ridersList;
    }

    @Override
    public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext())
                .inflate(R.layout.singleitem, parent, false);

        return new MyViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(MyViewHolder holder, int position) {
        Riders riders = ridersList.get(position);
        holder.title.setText(riders.getName());
        holder.club.setText(riders.getClub());
        holder.position.setText(riders.getFinishPosition());
    }

    @Override
    public int getItemCount() {
        return ridersList.size();
    }