diff --git a/patches/server/Optimize-MappedRegistry.patch b/patches/server/Optimize-MappedRegistry.patch
index 84be297eb8..fb7e639aba 100644
--- a/patches/server/Optimize-MappedRegistry.patch
+++ b/patches/server/Optimize-MappedRegistry.patch
@@ -16,13 +16,13 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      final ResourceKey<? extends Registry<T>> key;
      private final ObjectList<Holder.Reference<T>> byId = new ObjectArrayList<>(256);
 -    private final Reference2IntMap<T> toId = Util.make(new Reference2IntOpenHashMap<>(), (map) -> {
--        map.defaultReturnValue(-1);
--    });
++    private final Reference2IntMap<T> toId = Util.make(new Reference2IntOpenHashMap<>(2048), (map) -> { // Paper - use bigger expected size to reduce collisions
+         map.defaultReturnValue(-1);
+     });
 -    private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>();
 -    private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>();
 -    private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>();
 -    private final Map<T, Lifecycle> lifecycles = new IdentityHashMap<>();
-+    private final Reference2IntMap<T> toId = new Reference2IntOpenHashMap<T>(2048);// Paper - use bigger expected size to reduce collisions and direct intent for FastUtil to be identity map
 +    private final Map<ResourceLocation, Holder.Reference<T>> byLocation = new HashMap<>(2048); // Paper - use bigger expected size to reduce collisions
 +    private final Map<ResourceKey<T>, Holder.Reference<T>> byKey = new HashMap<>(2048); // Paper - use bigger expected size to reduce collisions
 +    private final Map<T, Holder.Reference<T>> byValue = new IdentityHashMap<>(2048); // Paper - use bigger expected size to reduce collisions
@@ -30,11 +30,3 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
      private Lifecycle registryLifecycle;
      private volatile Map<TagKey<T>, HolderSet.Named<T>> tags = new IdentityHashMap<>();
      private boolean frozen;
-@@ -0,0 +0,0 @@ public class MappedRegistry<T> implements WritableRegistry<T> {
-     }
- 
-     public MappedRegistry(ResourceKey<? extends Registry<T>> key, Lifecycle lifecycle, boolean intrusive) {
-+        this.toId.defaultReturnValue(-1); // Paper
-         this.key = key;
-         this.registryLifecycle = lifecycle;
-         if (intrusive) {