我的多线程爬取一部小说为什么执行的这么慢？和单线程一样

import re
import time
import os
import requests
from lxml import etree
from threading import Thread
import threading
from queue import Queue
headers = {
'User-Agent': 'Mozilla/5.0 (Linux; Android 6.0; Nexus 5 Build/MRA58N) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.107 Mobile Safari/537.36'}
'''要爬取小说的网址'''
url = '

'这个是笔趣阁任一部小说的网址'
'''对这页发起请求'''
resp = requests.get(url=url, headers=headers)
contentpage = resp.content.decode('utf-8', 'ignore')
html = etree.HTML(contentpage)
print(resp.status_code)
'''章节和内容队列+'''
titles_quenue = Queue(50000)
text_urls = Queue(50000)

def producer():
global titles_quenue,text_urls
while True:
title1 = html.xpath('/n//dd/a/text()')
for k in title1:
titles_quenue.put(k)
text_newurl = []
text_url2 = html.xpath('/n//dd/a/@href')
for i in text_url2:
j = url + i
text_newurl.append(j)
for j in text_newurl:
text_urls.put(j)

def consumer():
global titles_quenue,text_urls
'''小说名字'''

name = re.findall('<h1>(.+?)</h1>', contentpage, re.DOTALL)[0]
while True:
    '''小说章节'''
    title = titles_quenue.get()

    '''小说链接--发起请求获取数据'''
    text_url = text_urls.get()
    print(text_url)
    resp = requests.get(url=text_url, headers=headers)
    content = resp.content.decode('utf-8')
    html1 = etree.HTML(content)
    text = html1.xpath('//div[@id="content"]/text()')
    text = "".join(text)
    while len(text) == 0:
        '''如果没有内容，再次发起请求'''
        resp2 = requests.get(url=text_url, headers=headers)
        content2 = resp2.content.decode('utf-8')
        html2 = etree.HTML(content2)
        text = html2.xpath('//div[@id="content"]/text()')
        text = "".join(text)
    path1 = 'D:\AAAA桃花青帝\Python文件\爬虫\爬取小说/'
    if len(text) != 0:
        lll = os.path.exists(path1 + name)
        if not lll:
            os.makedirs(path1 + name)
            with open('D:\AAAA桃花青帝\Python文件\爬虫\爬取小说\{}/'.format(name) + '{}'.format(title) + '.txt', 'a',encoding='utf-8') as  f:
                f.write(text)
                print(title + '下载完成！！！！')
        else:
            with open('D:\AAAA桃花青帝\Python文件\爬虫\爬取小说\{}/'.format(name) + '{}'.format(title) + '.txt', 'a',encoding='utf-8') as  f:
                f.write(text)
                print(title + '下载完成！！！！')

def multi():

#定义生产者
for i  in range(50):
    t = threading.Thread(target=producer)
    t.start()
for  j in range(5):
    t= threading.Thread(target=consumer)
    t.start()

multi()

哥们写的好复杂。爬的慢也可能是对方网站原因。或者自己宽带网络不好。也可能是你得逻辑复杂度太高，，线程要有结束。别死循环了。

可能有反爬机制，不允许一个ip建立多个连接。
其次，你的代码有很大问题，消费者中拿了队列中的数据之后，你都不把这个数据移除，那你不是一直在拿这个数据吗