diff --git a/src/assets/AssetsLoader.cpp b/src/assets/AssetsLoader.cpp
index 6ed34baa..182bed6f 100644
--- a/src/assets/AssetsLoader.cpp
+++ b/src/assets/AssetsLoader.cpp
@@ -272,15 +272,15 @@ public:
     LoaderWorker(AssetsLoader* loader) : loader(loader) {
     }
 
-    assetload::postfunc operator()(const std::shared_ptr<aloader_entry>& entry
+    assetload::postfunc operator()(const aloader_entry& entry
     ) override {
-        aloader_func loadfunc = loader->getLoader(entry->tag);
+        aloader_func loadfunc = loader->getLoader(entry.tag);
         return loadfunc(
             loader,
             loader->getPaths(),
-            entry->filename,
-            entry->alias,
-            entry->config
+            entry.filename,
+            entry.alias,
+            entry.config
         );
     }
 };
@@ -290,14 +290,13 @@ std::shared_ptr<Task> AssetsLoader::startTask(runnable onDone) {
         std::make_shared<util::ThreadPool<aloader_entry, assetload::postfunc>>(
             "assets-loader-pool",
             [=]() { return std::make_shared<LoaderWorker>(this); },
-            [=](assetload::postfunc& func) { func(assets); }
+            [=](const assetload::postfunc& func) { func(assets); }
         );
     pool->setOnComplete(std::move(onDone));
     while (!entries.empty()) {
-        const aloader_entry& entry = entries.front();
-        auto ptr = std::make_shared<aloader_entry>(entry);
-        pool->enqueueJob(ptr);
+        aloader_entry entry = std::move(entries.front());
         entries.pop();
+        pool->enqueueJob(std::move(entry));
     }
     return pool;
 }
diff --git a/src/assets/AssetsLoader.hpp b/src/assets/AssetsLoader.hpp
index 602d841a..2321f9a3 100644
--- a/src/assets/AssetsLoader.hpp
+++ b/src/assets/AssetsLoader.hpp
@@ -43,8 +43,8 @@ using aloader_func = std::function<
 
 struct aloader_entry {
     AssetType tag;
-    const std::string filename;
-    const std::string alias;
+    std::string filename;
+    std::string alias;
     std::shared_ptr<AssetCfg> config;
 };
 
diff --git a/src/files/WorldConverter.cpp b/src/files/WorldConverter.cpp
index 46b85868..f9484142 100644
--- a/src/files/WorldConverter.cpp
+++ b/src/files/WorldConverter.cpp
@@ -27,8 +27,8 @@ public:
         : converter(std::move(converter)) {
     }
 
-    int operator()(const std::shared_ptr<ConvertTask>& task) override {
-        converter->convert(*task);
+    int operator()(const ConvertTask& task) override {
+        converter->convert(task);
         return 0;
     }
 };
@@ -169,10 +169,10 @@ std::shared_ptr<Task> WorldConverter::startTask(
     );
     auto& converterTasks = converter->tasks;
     while (!converterTasks.empty()) {
-        const ConvertTask& task = converterTasks.front();
-        auto ptr = std::make_shared<ConvertTask>(task);
-        pool->enqueueJob(ptr);
+        ConvertTask task = std::move(converterTasks.front());
         converterTasks.pop();
+        pool->enqueueJob(std::move(task));
+        
     }
     pool->setOnComplete([=]() {
         converter->write();
diff --git a/src/graphics/render/ChunksRenderer.cpp b/src/graphics/render/ChunksRenderer.cpp
index 0cfd327d..f5fb7f89 100644
--- a/src/graphics/render/ChunksRenderer.cpp
+++ b/src/graphics/render/ChunksRenderer.cpp
@@ -12,7 +12,7 @@
 
 static debug::Logger logger("chunks-render");
 
-class RendererWorker : public util::Worker<Chunk, RendererResult> {
+class RendererWorker : public util::Worker<std::shared_ptr<Chunk>, RendererResult> {
     Level* level;
     BlocksRenderer renderer;
 public:
diff --git a/src/graphics/render/ChunksRenderer.hpp b/src/graphics/render/ChunksRenderer.hpp
index da02ad0e..62d07280 100644
--- a/src/graphics/render/ChunksRenderer.hpp
+++ b/src/graphics/render/ChunksRenderer.hpp
@@ -30,7 +30,7 @@ class ChunksRenderer {
     std::unordered_map<glm::ivec2, std::shared_ptr<Mesh>> meshes;
     std::unordered_map<glm::ivec2, bool> inwork;
 
-    util::ThreadPool<Chunk, RendererResult> threadPool;
+    util::ThreadPool<std::shared_ptr<Chunk>, RendererResult> threadPool;
 public:
     ChunksRenderer(
         Level* level, 
diff --git a/src/util/ThreadPool.hpp b/src/util/ThreadPool.hpp
index 3bc7f86e..98ebcce5 100644
--- a/src/util/ThreadPool.hpp
+++ b/src/util/ThreadPool.hpp
@@ -17,7 +17,7 @@ namespace util {
 
     template <class J, class T>
     struct ThreadPoolResult {
-        std::shared_ptr<J> job;
+        J job;
         std::condition_variable& variable;
         int workerIndex;
         bool& locked;
@@ -29,13 +29,13 @@ namespace util {
     public:
         Worker() = default;
         virtual ~Worker() = default;
-        virtual R operator()(const std::shared_ptr<T>&) = 0;
+        virtual R operator()(const T&) = 0;
     };
 
     template <class T, class R>
     class ThreadPool : public Task {
         debug::Logger logger;
-        std::queue<std::shared_ptr<T>> jobs;
+        std::queue<T> jobs;
         std::queue<ThreadPoolResult<T, R>> results;
         std::mutex resultsMutex;
         std::vector<std::thread> threads;
@@ -43,7 +43,7 @@ namespace util {
         std::mutex jobsMutex;
         std::vector<std::unique_lock<std::mutex>> workersBlocked;
         consumer<R&> resultConsumer;
-        consumer<std::shared_ptr<T>&> onJobFailed = nullptr;
+        consumer<T&> onJobFailed = nullptr;
         runnable onComplete = nullptr;
         std::atomic<int> busyWorkers = 0;
         std::atomic<uint> jobsDone = 0;
@@ -57,7 +57,7 @@ namespace util {
             std::mutex mutex;
             bool locked = false;
             while (working) {
-                std::shared_ptr<T> job;
+                T job;
                 {
                     std::unique_lock<std::mutex> lock(jobsMutex);
                     jobsMutexCondition.wait(lock, [this] {
@@ -66,7 +66,7 @@ namespace util {
                     if (!working || failed) {
                         break;
                     }
-                    job = jobs.front();
+                    job = std::move(jobs.front());
                     jobs.pop();
 
                     busyWorkers++;
@@ -229,10 +229,10 @@ namespace util {
             }
         }
 
-        void enqueueJob(const std::shared_ptr<T>& job) {
+        void enqueueJob(T job) {
             {
                 std::lock_guard<std::mutex> lock(jobsMutex);
-                jobs.push(job);
+                jobs.push(std::move(job));
             }
             jobsMutexCondition.notify_one();
         }