From 75c03fbc62f9440a76d2b6535e95087f8e0fb9dd Mon Sep 17 00:00:00 2001
From: Zach Brown <zach.brown@destroystokyo.com>
Date: Tue, 1 Mar 2016 23:12:03 -0600
Subject: [PATCH] Only refresh abilities if needed


diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 6085f293d..26ee5444f 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -1330,12 +1330,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
 
     @Override
     public void setFlying(boolean value) {
+        boolean needsUpdate = getHandle().abilities.isFlying != value; // Paper - Only refresh abilities if needed
         if (!getAllowFlight() && value) {
             throw new IllegalArgumentException("Cannot make player fly if getAllowFlight() is false");
         }
 
         getHandle().abilities.isFlying = value;
-        getHandle().updateAbilities();
+        if (needsUpdate) getHandle().updateAbilities(); // Paper - Only refresh abilities if needed
     }
 
     @Override
-- 
2.21.0