Android sqlite SQLiteStatement memory issue

I am trying minimize memory usage. My application get slower when the this code running and memory increase 50-100mb

public void setAllSeriestoDatabase(String jsonString){
        try {
            removeSQL();
            SQLiteDatabase db = getWritableDatabase();
            JSONArray json = new JSONObject(jsonString).getJSONArray("musics");

            String sql = "INSERT INTO musics (uid, title, genre, artist, count, image, adddate) VALUES (?,?,?,?,?,?,?,?,?,?,?);";
            SQLiteStatement statement = db.compileStatement(sql);
            db.beginTransaction();

            for (int i = 0; i < json.length(); i++) {
                statement.clearBindings();
                statement.bindString(1, json.getJSONObject(i).getString("id").toString());
                statement.bindString(2, json.getJSONObject(i).getString("name").toString());
                statement.bindString(3, json.getJSONObject(i).getString("genre").toString());
                statement.bindString(4, json.getJSONObject(i).getString("artist").toString());
                statement.bindString(5, json.getJSONObject(i).getString("count").toString());
                statement.bindString(6, json.getJSONObject(i).getString("coverimg").toString());
                statement.bindString(7, json.getJSONObject(i).getString("adddate").toString() );
                statement.execute();
            }
            statement.close();
            db.setTransactionSuccessful();
            db.endTransaction();
            db.close();
        } catch (JSONException e) {}
}