diff --git a/src/Thunks/api-ms-win-core-io.hpp b/src/Thunks/api-ms-win-core-io.hpp
index 35e6247..61c4f3b 100644
--- a/src/Thunks/api-ms-win-core-io.hpp
+++ b/src/Thunks/api-ms-win-core-io.hpp
@@ -92,18 +92,15 @@ namespace YY::Thunks
             
         if (fAlertable)
         {
-            // 使用 WaitForSingleObjectEx 进行等待触发 APC
-            auto _uStartTick = GetTickCount();
-            for (;;)
+            constexpr auto kMaxSleepTime = 10;
+            // 使用 SleepEx 进行等待触发 APC
+            if (dwMilliseconds == INFINITE)
             {
-                const auto _uResult = WaitForSingleObjectEx(CompletionPort, dwMilliseconds, TRUE);
-                if (_uResult == WAIT_OBJECT_0)
+                for (;;)
                 {
-                    // 完成端口有数据了
                     auto _bRet = GetQueuedCompletionStatus(CompletionPort, &_Entry.dwNumberOfBytesTransferred, &_Entry.lpCompletionKey, &_Entry.lpOverlapped, 0);
                     if (_bRet)
                     {
-                        *ulNumEntriesRemoved = 1;
                         break;
                     }
 
@@ -112,47 +109,54 @@ namespace YY::Thunks
                         return FALSE;
                     }
 
-                    // 无限等待时无脑继续等即可。
-                    if (dwMilliseconds == INFINITE)
+                    if (SleepEx(kMaxSleepTime, TRUE) == WAIT_IO_COMPLETION)
                     {
-                        continue;
+                        SetLastError(WAIT_IO_COMPLETION);
+                        return FALSE;
+                    }
+                }
+            }
+            else
+            {
+                const auto _uStartTick = GetTickCount();
+                for (;;)
+                {
+                    auto _bRet = GetQueuedCompletionStatus(CompletionPort, &_Entry.dwNumberOfBytesTransferred, &_Entry.lpCompletionKey, &_Entry.lpOverlapped, 0);
+                    if (_bRet)
+                    {
+                        break;
+                    }
+
+                    if (GetLastError() != WAIT_TIMEOUT)
+                    {
+                        return FALSE;
                     }
 
                     // 计算剩余等待时间，如果剩余等待时间归零则返回
-                    const DWORD _uTickSpan = GetTickCount() - _uStartTick;
-                    if (_uTickSpan >= dwMilliseconds)
+                    const auto _uTickSpan = GetTickCount() - _uStartTick;
+                    if (dwMilliseconds > _uTickSpan)
+                    {
+                        if (SleepEx(min(kMaxSleepTime, dwMilliseconds - _uTickSpan), TRUE) == WAIT_IO_COMPLETION)
+                        {
+                            SetLastError(WAIT_IO_COMPLETION);
+                            return FALSE;
+                        }
+                    }
+                    else
                     {
+                        if (SleepEx(0, TRUE) == WAIT_IO_COMPLETION)
+                        {
+                            SetLastError(WAIT_IO_COMPLETION);
+                            return FALSE;
+                        }
+
                         SetLastError(WAIT_TIMEOUT);
                         return FALSE;
                     }
-                    dwMilliseconds -= _uTickSpan;
-                    _uStartTick += _uTickSpan;
-                    continue;
-                }
-                else if (_uResult == WAIT_IO_COMPLETION || _uResult == WAIT_TIMEOUT)
-                {
-                    // 很奇怪，微软原版遇到 APC唤醒直接会设置 LastError WAIT_IO_COMPLETION
-                    // 遇到超时，LastError WAIT_TIMEOUT（注意不是预期的 ERROR_TIMEOUT）不知道是故意还是有意。
-                    SetLastError(_uResult);
-                    return FALSE;
-                }
-                else if (_uResult == WAIT_ABANDONED)
-                {
-                    SetLastError(ERROR_ABANDONED_WAIT_0);
-                    return FALSE;
-                }
-                else if (_uResult == WAIT_FAILED)
-                {
-                    // LastError
-                    return FALSE;
-                }
-                else
-                {
-                    // LastError ???
-                    return FALSE;
                 }
             }
 
+            *ulNumEntriesRemoved = 1;
             return TRUE;
         }
         else