diff --git a/src/block/Fire.php b/src/block/Fire.php
index a39ef6b9c..11378b82b 100644
--- a/src/block/Fire.php
+++ b/src/block/Fire.php
@@ -145,9 +145,13 @@ class Fire extends BaseFire{
 
 	private function burnBlock(Block $block, int $chanceBound) : void{
 		if(mt_rand(0, $chanceBound) < $block->getFlammability()){
-			$ev = new BlockBurnEvent($block, $this);
-			$ev->call();
-			if(!$ev->isCancelled()){
+			$cancelled = false;
+			if(BlockBurnEvent::hasHandlers()){
+				$ev = new BlockBurnEvent($block, $this);
+				$ev->call();
+				$cancelled = $ev->isCancelled();
+			}
+			if(!$cancelled){
 				$block->onIncinerate();
 
 				$world = $this->position->getWorld();
diff --git a/src/block/Leaves.php b/src/block/Leaves.php
index 235190454..b1839dca6 100644
--- a/src/block/Leaves.php
+++ b/src/block/Leaves.php
@@ -116,10 +116,15 @@ class Leaves extends Transparent{
 
 	public function onRandomTick() : void{
 		if(!$this->noDecay && $this->checkDecay){
-			$ev = new LeavesDecayEvent($this);
-			$ev->call();
+			$cancelled = false;
+			if(LeavesDecayEvent::hasHandlers()){
+				$ev = new LeavesDecayEvent($this);
+				$ev->call();
+				$cancelled = $ev->isCancelled();
+			}
+
 			$world = $this->position->getWorld();
-			if($ev->isCancelled() || $this->findLog($this->position)){
+			if($cancelled || $this->findLog($this->position)){
 				$this->checkDecay = false;
 				$world->setBlock($this->position, $this, false);
 			}else{
diff --git a/src/world/World.php b/src/world/World.php
index 934ff6690..3ff5632cb 100644
--- a/src/world/World.php
+++ b/src/world/World.php
@@ -972,14 +972,17 @@ class World implements ChunkManager{
 				$block = $replacement;
 			}
 
-			$ev = new BlockUpdateEvent($block);
-			$ev->call();
-			if(!$ev->isCancelled()){
-				foreach($this->getNearbyEntities(AxisAlignedBB::one()->offset($x, $y, $z)) as $entity){
-					$entity->onNearbyBlockChange();
+			if(BlockUpdateEvent::hasHandlers()){
+				$ev = new BlockUpdateEvent($block);
+				$ev->call();
+				if($ev->isCancelled()){
+					continue;
 				}
-				$block->onNearbyBlockChange();
 			}
+			foreach($this->getNearbyEntities(AxisAlignedBB::one()->offset($x, $y, $z)) as $entity){
+				$entity->onNearbyBlockChange();
+			}
+			$block->onNearbyBlockChange();
 		}
 
 		$this->timings->scheduledBlockUpdates->stopTiming();