diff --git a/quark/core/apkinfo.py b/quark/core/apkinfo.py
index a764836b..b9941dcc 100644
--- a/quark/core/apkinfo.py
+++ b/quark/core/apkinfo.py
@@ -111,6 +111,7 @@ def upperfunc(self, method_object: MethodObject) -> Set[MethodObject]:
             for _, call, _ in method_analysis.get_xref_from()
         }
 
+    @functools.lru_cache()
     def lowerfunc(self, method_object: MethodObject) -> Set[MethodObject]:
         method_analysis = method_object.cache
         return {
diff --git a/quark/core/quark.py b/quark/core/quark.py
index 3b222c94..64f5a1c1 100644
--- a/quark/core/quark.py
+++ b/quark/core/quark.py
@@ -164,13 +164,14 @@ def check_sequence(
         :return: True or False
         """
         state = False
+        mutual_parent_lowerfunc = self.apkinfo.lowerfunc(mutual_parent)
 
         for first_call_method in first_method_list:
             for second_call_method in second_method_list:
 
                 seq_table = [
                     (call, number)
-                    for call, number in self.apkinfo.lowerfunc(mutual_parent)
+                    for call, number in mutual_parent_lowerfunc
                     if call in (first_call_method, second_call_method)
                 ]