java+selenium爬虫，获取到的List<WebElement>，遍历很慢

爬取地址：https://www.worldometers.info/coronavirus/

数据内容：

部分代码：

ChromeDriver chromeDriver = new ChromeDriver();
chromeDriver.get("https://www.worldometers.info/coronavirus/");
WebElement content = chromeDriver.findElement(By.id("main_table_countries_yesterday"));
List<WebElement> tr2 = content.findElements(By.tagName("tr"));
ArrayList<String> arrayList = new ArrayList<>();
        for (int i = 0; i < tr2.size(); i++) {
            WebElement webElement = tr2.get(i);
            if (i!=0&&i!=240){
                if (!webElement.getText().equals("")){
                    List<WebElement> td = webElement.findElements(By.tagName("td"));
                    StringBuilder sb = new StringBuilder();
                    for (int j = 0; j < td.size(); j++) {
                        if (j != 15) {
                            WebElement element = td.get(j);
                            sb.append(element.getText()).append(";");
                        }
                    }
                    arrayList.add(sb.toString());
                }
            }
        }

明天验证下.现在是多少秒