diff --git a/debian/changelog b/debian/changelog
index 008bbf08..2712ec58 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+util-dfm (1.3.56) unstable; urgency=medium
+
+  * perf: cache resolved indexed directories to avoid repeated resolution
+
+ -- Zhang Sheng <zhangsheng@uniontech.com>  Thu, 21 May 2026 22:11:26 +0800
+
 util-dfm (1.3.55) unstable; urgency=medium
 
   * fix(build): detect Qt6 availability when os-version is missing
diff --git a/src/dfm-search/dfm-search-lib/core/genericsearchengine.cpp b/src/dfm-search/dfm-search-lib/core/genericsearchengine.cpp
index 667f5176..5d8565c9 100644
--- a/src/dfm-search/dfm-search-lib/core/genericsearchengine.cpp
+++ b/src/dfm-search/dfm-search-lib/core/genericsearchengine.cpp
@@ -53,7 +53,7 @@ void GenericSearchEngine::init()
     connect(this, &GenericSearchEngine::requestSearch,
             m_worker, &SearchWorker::doSearch);
     connect(this, &GenericSearchEngine::requestCancel,
-            m_worker, &SearchWorker::cancelSearch);
+            m_worker, &SearchWorker::cancelSearch, Qt::DirectConnection);
 
     // 连接结果信号（工作线程 -> 主线程）
     connect(m_worker, &SearchWorker::resultFound,