diff --git a/src/pocketmine/level/format/Chunk.php b/src/pocketmine/level/format/Chunk.php
index 948516e945..f8796afb80 100644
--- a/src/pocketmine/level/format/Chunk.php
+++ b/src/pocketmine/level/format/Chunk.php
@@ -38,6 +38,7 @@ use pocketmine\tile\TileFactory;
 use pocketmine\utils\BinaryStream;
 use function array_fill;
 use function array_filter;
+use function array_map;
 use function array_values;
 use function assert;
 use function chr;
@@ -590,6 +591,20 @@ class Chunk{
 		}
 	}
 
+	/**
+	 * @return CompoundTag[]
+	 */
+	public function getNBTtiles() : array{
+		return $this->NBTtiles ?? array_map(function(Tile $tile) : CompoundTag{ return $tile->saveNBT(); }, $this->tiles);
+	}
+
+	/**
+	 * @return CompoundTag[]
+	 */
+	public function getNBTentities() : array{
+		return $this->NBTentities ?? array_map(function(Entity $entity) : CompoundTag{ return $entity->saveNBT(); }, $this->getSavableEntities());
+	}
+
 	/**
 	 * Deserializes tiles and entities from NBT
 	 *
diff --git a/src/pocketmine/level/format/io/leveldb/LevelDB.php b/src/pocketmine/level/format/io/leveldb/LevelDB.php
index 069692c7cf..cd91e59fc4 100644
--- a/src/pocketmine/level/format/io/leveldb/LevelDB.php
+++ b/src/pocketmine/level/format/io/leveldb/LevelDB.php
@@ -343,19 +343,8 @@ class LevelDB extends BaseLevelProvider{
 		//TODO: use this properly
 		$this->db->put($index . self::TAG_STATE_FINALISATION, chr(self::FINALISATION_DONE));
 
-		/** @var CompoundTag[] $tiles */
-		$tiles = [];
-		foreach($chunk->getTiles() as $tile){
-			$tiles[] = $tile->saveNBT();
-		}
-		$this->writeTags($tiles, $index . self::TAG_BLOCK_ENTITY);
-
-		/** @var CompoundTag[] $entities */
-		$entities = [];
-		foreach($chunk->getSavableEntities() as $entity){
-			$entities[] = $entity->saveNBT();
-		}
-		$this->writeTags($entities, $index . self::TAG_ENTITY);
+		$this->writeTags($chunk->getNBTtiles(), $index . self::TAG_BLOCK_ENTITY);
+		$this->writeTags($chunk->getNBTentities(), $index . self::TAG_ENTITY);
 
 		$this->db->delete($index . self::TAG_DATA_2D_LEGACY);
 		$this->db->delete($index . self::TAG_LEGACY_TERRAIN);
diff --git a/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php b/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
index 3d68f5f6c2..e10e6eb287 100644
--- a/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
+++ b/src/pocketmine/level/format/io/region/LegacyAnvilChunkTrait.php
@@ -73,20 +73,8 @@ trait LegacyAnvilChunkTrait{
 		$nbt->setByteArray("Biomes", $chunk->getBiomeIdArray());
 		$nbt->setIntArray("HeightMap", $chunk->getHeightMapArray());
 
-		$entities = [];
-
-		foreach($chunk->getSavableEntities() as $entity){
-			$entities[] = $entity->saveNBT();
-		}
-
-		$nbt->setTag(new ListTag("Entities", $entities, NBT::TAG_Compound));
-
-		$tiles = [];
-		foreach($chunk->getTiles() as $tile){
-			$tiles[] = $tile->saveNBT();
-		}
-
-		$nbt->setTag(new ListTag("TileEntities", $tiles, NBT::TAG_Compound));
+		$nbt->setTag(new ListTag("Entities", $chunk->getNBTentities(), NBT::TAG_Compound));
+		$nbt->setTag(new ListTag("TileEntities", $chunk->getNBTtiles(), NBT::TAG_Compound));
 
 		//TODO: TileTicks
 
diff --git a/src/pocketmine/level/format/io/region/McRegion.php b/src/pocketmine/level/format/io/region/McRegion.php
index 277e6ff893..b4047ce96d 100644
--- a/src/pocketmine/level/format/io/region/McRegion.php
+++ b/src/pocketmine/level/format/io/region/McRegion.php
@@ -81,20 +81,8 @@ class McRegion extends RegionLevelProvider{
 		$nbt->setByteArray("Biomes", $chunk->getBiomeIdArray()); //doesn't exist in regular McRegion, this is here for PocketMine-MP only
 		$nbt->setByteArray("HeightMap", pack("C*", ...$chunk->getHeightMapArray())); //this is ByteArray in McRegion, but IntArray in Anvil (due to raised build height)
 
-		$entities = [];
-
-		foreach($chunk->getSavableEntities() as $entity){
-			$entities[] = $entity->saveNBT();
-		}
-
-		$nbt->setTag(new ListTag("Entities", $entities, NBT::TAG_Compound));
-
-		$tiles = [];
-		foreach($chunk->getTiles() as $tile){
-			$tiles[] = $tile->saveNBT();
-		}
-
-		$nbt->setTag(new ListTag("TileEntities", $tiles, NBT::TAG_Compound));
+		$nbt->setTag(new ListTag("Entities", $chunk->getNBTentities(), NBT::TAG_Compound));
+		$nbt->setTag(new ListTag("TileEntities", $chunk->getNBTtiles(), NBT::TAG_Compound));
 
 		$writer = new BigEndianNbtSerializer();
 		return $writer->writeCompressed(new CompoundTag("", [$nbt]), ZLIB_ENCODING_DEFLATE, RegionLoader::$COMPRESSION_LEVEL);