diff --git a/TMWebDriver.py b/TMWebDriver.py
index 86a2b0b..9669777 100644
--- a/TMWebDriver.py
+++ b/TMWebDriver.py
@@ -34,7 +34,7 @@ class Session:
 
 
 class TMWebDriver:  
-    def __init__(self, host: str = 'localhost', port: int = 18765):  
+    def __init__(self, host: str = '127.0.0.1', port: int = 18765):  
         self.host, self.port = host, port
         self.sessions, self.results, self.acks = {}, {}, {}
         self.default_session_id = None  
@@ -202,7 +202,7 @@ class TMWebDriver:
         hasjump = acked = False
 
         while exec_id not in self.results:  
-            time.sleep(0.5)  
+            time.sleep(0.2)  
             if not acked and exec_id in self.acks:
                 acked = True; start_time = time.time()
             if tp == 'ws':
@@ -266,4 +266,4 @@ class TMWebDriver:
         return self.execute_js(f'GM_openInTab("{url}");')
     
 if __name__ == "__main__":
-    driver = TMWebDriver(host='localhost', port=18765)
\ No newline at end of file
+    driver = TMWebDriver(host='127.0.0.1', port=18765)
\ No newline at end of file
diff --git a/assets/ljq_web_driver.user.js b/assets/ljq_web_driver.user.js
index 2e90d36..1674be2 100644
--- a/assets/ljq_web_driver.user.js
+++ b/assets/ljq_web_driver.user.js
@@ -11,7 +11,7 @@
 // @grant        GM_xmlhttpRequest
 // @grant        GM_openInTab
 // @grant        unsafeWindow
-// @connect      localhost
+// @connect      127.0.0.1
 // @run-at       document-start
 // ==/UserScript==
 
@@ -26,13 +26,13 @@
         return;
     }
 
-    const wsUrl = 'ws://localhost:18765';
-    const httpUrl = 'http://localhost:18766/';
+    const wsUrl = 'ws://127.0.0.1:18765';
+    const httpUrl = 'http://127.0.0.1:18766/';
     
     function isWebSocketServerAlive(callback) {
         GM_xmlhttpRequest({
             method: 'GET',
-            url: 'http://localhost:18765/',
+            url: 'http://127.0.0.1:18765/',
             onload: () => callback(true),
             onerror: () => callback(false)
         });
diff --git a/memory/tmwebdriver_sop.md b/memory/tmwebdriver_sop.md
index ad26ebd..a004fc2 100644
--- a/memory/tmwebdriver_sop.md
+++ b/memory/tmwebdriver_sop.md
@@ -104,4 +104,7 @@ web_scan失败时按序排查：
 ①TM没装？→遍历本机所有Chromium浏览器(Chrome/Edge/Brave…)用户数据目录下Extensions/，各子目录manifest.json搜"tampermonkey"
   没找到→走web_setup_sop；找到→记住装在哪个浏览器
 ②浏览器没开？→检查①对应的浏览器进程是否在跑(tasklist/ps)，没有则启动并打开正常URL（⚠about:blank等内部页不加载扩展）
-③WS后台挂了？→socket.connect_ex(('localhost',18766))非0即dead→手动`from TMWebDriver import TMWebDriver; TMWebDriver()`起master
\ No newline at end of file
+③WS后台挂了？→socket.connect_ex(('127.0.0.1',18766))非0即dead→手动`from TMWebDriver import TMWebDriver; TMWebDriver()`起master
+
+## 性能
+- ⚠ URL必须用`127.0.0.1`不用`localhost`。Windows下localhost先尝试IPv6(::1)超时2s再回退IPv4，每次HTTP请求多2s
\ No newline at end of file
diff --git a/simphtml.py b/simphtml.py
index c439dd4..b5294da 100644
--- a/simphtml.py
+++ b/simphtml.py
@@ -17,12 +17,14 @@ function createEnhancedDOMCopy() {
     if (sourceNode.nodeType === 3) return sourceNode.cloneNode(false);  
     const clone = sourceNode.cloneNode(false);
     if ((sourceNode.tagName === 'INPUT' || sourceNode.tagName === 'TEXTAREA') && sourceNode.value) clone.setAttribute('value', sourceNode.value);
+    if (sourceNode.tagName === 'INPUT' && (sourceNode.type === 'radio' || sourceNode.type === 'checkbox') && sourceNode.checked) clone.setAttribute('checked', '');
     else if (sourceNode.tagName === 'SELECT' && sourceNode.value) clone.setAttribute('data-selected', sourceNode.value);  
     try { if (sourceNode.matches && sourceNode.matches(':-webkit-autofill')) { clone.setAttribute('data-autofilled', 'true'); if (!sourceNode.value) clone.setAttribute('value', '⚠️受保护-读tmwebdriver_sop的autofill章节提取'); } } catch(e) {}
 
     const isDropdown = sourceNode.classList?.contains('dropdown-menu') ||   
              /dropdown|menu/i.test(sourceNode.className) || sourceNode.getAttribute('role') === 'menu'; 
-    const isSmallDropdown = isDropdown && (sourceNode.querySelectorAll('a, button, [role="menuitem"], li').length <= 7 && sourceNode.textContent.length < 500);  
+    const _ddItems = isDropdown ? sourceNode.querySelectorAll('a, button, [role="menuitem"], li').length : 0;
+    const isSmallDropdown = _ddItems > 0 && _ddItems <= 7 && sourceNode.textContent.length < 500;  
 
     const childNodes = [];  
     for (const child of sourceNode.childNodes) {  
@@ -704,6 +706,7 @@ js_findMainContent = '''
 def optimize_html_for_tokens(html):  
     if type(html) is str: soup = BeautifulSoup(html, 'html.parser')  
     else: soup = html
+    for svg in soup.find_all('svg'): svg.clear()
     [tag.attrs.pop('style', None) for tag in soup.find_all(True)]  
     for tag in soup.find_all(True):  
         if tag.has_attr('src'):  
@@ -788,6 +791,10 @@ def find_changed_elements(before_html, after_html):
     for sig, els in after_sigs.items():
         if sig not in before_sigs: changed.extend(els)
         elif len(els) > len(before_sigs[sig]): changed.extend(els[:len(els) - len(before_sigs[sig])])
+    if len(changed) == 0 and str(before_soup) != str(after_soup):
+        before_els, after_els = before_soup.find_all(True), after_soup.find_all(True)
+        for i in range(min(len(before_els), len(after_els))):
+            if get_sig(before_els[i]) != get_sig(after_els[i]): changed.append(after_els[i])
     # 变化边界: parent不在changed中的元素
     cids = set(id(el) for el in changed)
     boundaries = [el for el in changed if el.parent is None or id(el.parent) not in cids]