diff --git a/src/controllers/plugins/PluginController.cpp b/src/controllers/plugins/PluginController.cpp
index b5066a984..785a33a41 100644
--- a/src/controllers/plugins/PluginController.cpp
+++ b/src/controllers/plugins/PluginController.cpp
@@ -101,7 +101,9 @@ bool PluginController::tryLoadFromDir(const QDir &pluginDir)
     this->load(index, pluginDir, PluginMeta(doc.object()));
     return true;
 }
-void PluginController::openLibrariesFor(lua_State *L, PluginMeta meta)
+
+void PluginController::openLibrariesFor(lua_State *L,
+                                        const PluginMeta & /*meta*/)
 {
     // Stuff to change, remove or hide behind a permission system:
     static const std::vector<luaL_Reg> loadedlibs = {
@@ -135,12 +137,13 @@ void PluginController::openLibrariesFor(lua_State *L, PluginMeta meta)
     }
 }
 
-void PluginController::load(QFileInfo index, QDir pluginDir, PluginMeta meta)
+void PluginController::load(const QFileInfo &index, const QDir &pluginDir,
+                            const PluginMeta &meta)
 {
     qCDebug(chatterinoLua) << "Running lua file" << index;
     lua_State *l = luaL_newstate();
-    this->openLibrariesFor(l, meta);
-    this->loadChatterinoLib(l);
+    PluginController::openLibrariesFor(l, meta);
+    PluginController::loadChatterinoLib(l);
 
     auto pluginName = pluginDir.dirName();
     auto plugin = std::make_unique<Plugin>(pluginName, l, meta, pluginDir);
@@ -154,7 +157,7 @@ void PluginController::load(QFileInfo index, QDir pluginDir, PluginMeta meta)
         }
     }
     this->plugins_.insert({pluginName, std::move(plugin)});
-    if (!this->isEnabled(pluginName))
+    if (!PluginController::isEnabled(pluginName))
     {
         qCInfo(chatterinoLua) << "Skipping loading" << pluginName << "("
                               << meta.name << ") because it is disabled";
@@ -189,7 +192,7 @@ bool PluginController::reload(const QString &codename)
         getApp()->commands->unregisterPluginCommand(cmd);
     }
     it->second->ownedCommands.clear();
-    if (this->isEnabled(codename))
+    if (PluginController::isEnabled(codename))
     {
         QDir loadDir = it->second->loadDirectory_;
         this->plugins_.erase(codename);
@@ -209,7 +212,8 @@ void PluginController::callEvery(const QString &functionName)
 
 void PluginController::callEveryWithArgs(
     const QString &functionName, int count,
-    std::function<void(const std::unique_ptr<Plugin> &pl, lua_State *L)> argCb)
+    const std::function<void(const std::unique_ptr<Plugin> &pl, lua_State *L)>
+        &argCb)
 {
     for (const auto &[name, plugin] : this->plugins_)
     {
diff --git a/src/controllers/plugins/PluginController.hpp b/src/controllers/plugins/PluginController.hpp
index e4eedd128..e87e1e6d9 100644
--- a/src/controllers/plugins/PluginController.hpp
+++ b/src/controllers/plugins/PluginController.hpp
@@ -30,8 +30,8 @@ public:
     void callEvery(const QString &functionName);
     void callEveryWithArgs(
         const QString &functionName, int count,
-        std::function<void(const std::unique_ptr<Plugin> &pl, lua_State *L)>
-            argCb);
+        const std::function<void(const std::unique_ptr<Plugin> &pl,
+                                 lua_State *L)> &argCb);
 
     QString tryExecPluginCommand(const QString &commandName,
                                  const CommandContext &ctx);
@@ -56,15 +56,16 @@ public:
     }
 
     bool reload(const QString &codename);
-    bool isEnabled(const QString &codename);
+    static bool isEnabled(const QString &codename);
 
 private:
     void actuallyInitialize();
-    void load(QFileInfo index, QDir pluginDir, PluginMeta meta);
-    void loadChatterinoLib(lua_State *l);
+    void load(const QFileInfo &index, const QDir &pluginDir,
+              const PluginMeta &meta);
 
     // This function adds lua standard libraries into the state
-    void openLibrariesFor(lua_State *L, PluginMeta meta);
+    static void openLibrariesFor(lua_State *L, const PluginMeta & /*meta*/);
+    static void loadChatterinoLib(lua_State *l);
     bool tryLoadFromDir(const QDir &pluginDir);
     std::map<QString, std::unique_ptr<Plugin>> plugins_;
 };
diff --git a/src/widgets/settingspages/PluginsPage.cpp b/src/widgets/settingspages/PluginsPage.cpp
index df4f8aa15..91ab4fba2 100644
--- a/src/widgets/settingspages/PluginsPage.cpp
+++ b/src/widgets/settingspages/PluginsPage.cpp
@@ -106,7 +106,7 @@ void PluginsPage::rebuildContent()
         pl->addRow("Commands", new QLabel(cmds));
 
         QString enableOrDisableStr = "Enable";
-        if (getApp()->plugins->isEnabled(codename))
+        if (PluginController::isEnabled(codename))
         {
             enableOrDisableStr = "Disable";
         }
@@ -116,7 +116,7 @@ void PluginsPage::rebuildContent()
             enableDisable, &QPushButton::pressed, [name = codename, this]() {
                 std::vector<QString> val =
                     getSettings()->enabledPlugins.getValue();
-                if (getApp()->plugins->isEnabled(name))
+                if (PluginController::isEnabled(name))
                 {
                     val.erase(std::remove(val.begin(), val.end(), name),
                               val.end());