diff --git a/core/proguard-rules.pro b/core/proguard-rules.pro
index c0c37dc3..899d1b8a 100644
--- a/core/proguard-rules.pro
+++ b/core/proguard-rules.pro
@@ -20,6 +20,8 @@
 # hide the original source file name.
 #-renamesourcefileattribute SourceFile
 
+-keepattributes *Annotation*
+
 -keep class de.robv.android.xposed.** {*;}
 -keep class android.** { *; }
 -keepclassmembers class * implements android.os.Parcelable {
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/ClassLinker.java b/core/src/main/java/org/lsposed/lspd/nativebridge/ClassLinker.java
index f9c30609..1f440c94 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/ClassLinker.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/ClassLinker.java
@@ -22,12 +22,15 @@ package org.lsposed.lspd.nativebridge;
 
 import java.lang.reflect.Executable;
 
+import dalvik.annotation.optimization.FastNative;
 import de.robv.android.xposed.PendingHooks;
 
 public class ClassLinker {
 
+    @FastNative
     public static native void setEntryPointsToInterpreter(Executable method);
 
+    @FastNative
     public static void onPostFixupStaticTrampolines(Class<?> clazz) {
         // native flags will be re-set in hooking logic
         PendingHooks.hookPendingMethod(clazz);
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/ModuleLogger.java b/core/src/main/java/org/lsposed/lspd/nativebridge/ModuleLogger.java
index 5151c855..287a5379 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/ModuleLogger.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/ModuleLogger.java
@@ -31,6 +31,8 @@ import java.util.TimeZone;
 
 import org.lsposed.lspd.util.Utils;
 
+import dalvik.annotation.optimization.FastNative;
+
 public class ModuleLogger {
     static SimpleDateFormat logDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.sss", Locale.getDefault());
     static int fd = -1;
@@ -42,6 +44,7 @@ public class ModuleLogger {
         }
     }
 
+    @FastNative
     private static native void nativeLog(int fd, String logStr);
 
     public static void log(String str, boolean isThrowable) {
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/NativeAPI.java b/core/src/main/java/org/lsposed/lspd/nativebridge/NativeAPI.java
index eeca6134..bda39b8e 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/NativeAPI.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/NativeAPI.java
@@ -20,6 +20,9 @@
 
 package org.lsposed.lspd.nativebridge;
 
+import dalvik.annotation.optimization.FastNative;
+
 public class NativeAPI {
+    @FastNative
     public static native void recordNativeEntrypoint(String library_name);
 }
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/PendingHooks.java b/core/src/main/java/org/lsposed/lspd/nativebridge/PendingHooks.java
index 12a9f3b4..4bbaf7a8 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/PendingHooks.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/PendingHooks.java
@@ -22,6 +22,9 @@ package org.lsposed.lspd.nativebridge;
 
 import java.lang.reflect.Method;
 
+import dalvik.annotation.optimization.FastNative;
+
 public class PendingHooks {
-    public static native void recordPendingMethodNative(Method hookMethod, Class clazz);
+    @FastNative
+    public static native void recordPendingMethodNative(Method hookMethod, Class<?> clazz);
 }
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/ResourcesHook.java b/core/src/main/java/org/lsposed/lspd/nativebridge/ResourcesHook.java
index 34f4c319..d715fb35 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/ResourcesHook.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/ResourcesHook.java
@@ -23,13 +23,19 @@ package org.lsposed.lspd.nativebridge;
 import android.content.res.Resources;
 import android.content.res.XResources;
 
+import dalvik.annotation.optimization.FastNative;
+
 public class ResourcesHook {
 
+    @FastNative
     public static native boolean initXResourcesNative();
 
+    @FastNative
     public static native boolean removeFinalFlagNative(Class<?> clazz);
 
+    @FastNative
     public static native ClassLoader buildDummyClassLoader(ClassLoader parent, Class<?> resourceSuperClass, Class<?> typedArraySuperClass);
 
+    @FastNative
     public static native void rewriteXmlReferencesNative(long parserPtr, XResources origRes, Resources repRes);
 }
diff --git a/core/src/main/java/org/lsposed/lspd/nativebridge/Yahfa.java b/core/src/main/java/org/lsposed/lspd/nativebridge/Yahfa.java
index adfea0d5..4d263b42 100644
--- a/core/src/main/java/org/lsposed/lspd/nativebridge/Yahfa.java
+++ b/core/src/main/java/org/lsposed/lspd/nativebridge/Yahfa.java
@@ -23,18 +23,26 @@ package org.lsposed.lspd.nativebridge;
 import java.lang.reflect.Executable;
 import java.lang.reflect.Method;
 
+import dalvik.annotation.optimization.FastNative;
+
 public class Yahfa {
 
+    @FastNative
     public static native boolean backupAndHookNative(Executable target, Method hook, Method backup);
 
     // JNI.ToReflectedMethod() could return either Method or Constructor
+    @FastNative
     public static native Executable findMethodNative(Class<?> targetClass, String methodName, String methodSig);
 
+    @FastNative
     public static native void init(int sdkVersion);
 
+    @FastNative
     public static native void recordHooked(Executable member);
 
+    @FastNative
     public static native boolean isHooked(Executable member);
 
+    @FastNative
     public static native Class<?> buildHooker(ClassLoader appClassLoader, Class<?> returnType, Class<?>[] params, String methodName);
 }
diff --git a/hiddenapi-stubs/src/main/java/dalvik/annotation/optimization/FastNative.java b/hiddenapi-stubs/src/main/java/dalvik/annotation/optimization/FastNative.java
new file mode 100644
index 00000000..6c8379dd
--- /dev/null
+++ b/hiddenapi-stubs/src/main/java/dalvik/annotation/optimization/FastNative.java
@@ -0,0 +1,11 @@
+package dalvik.annotation.optimization;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+@Retention(RetentionPolicy.CLASS)
+@Target(ElementType.METHOD)
+public @interface FastNative {
+}