Fix: cleanup and minor perf improvements

Assets/Unheimlich_POC/Scripts/Features/Dialogue/UI/DialogueUI.cs

@@ -48,11 +48,14 @@ namespace Unheimlich.Features.Dialogue.UI
     private int _fadeCanvasTweenId = -1;
     private int _rotationTweenId = -1;
     private List<int> _floatingTweenIds = new List<int>();
+    private Camera _mainCamera;
     
     private static readonly Vector3 ViewportCenter = new Vector3(0.5f, 0.5f, 0f);
 
     private void Awake()
     {
+        _mainCamera = Camera.main;
+        
         if (_dialogueCanvasGroup == null && _dialoguePanel != null)
         {
             _dialogueCanvasGroup = _dialoguePanel.GetComponent<CanvasGroup>();
@@ -366,7 +369,7 @@ namespace Unheimlich.Features.Dialogue.UI
 
         _sortTimer = 0f;
 
-        FloatingWordsSpawner.SortByDistance(_activeChoices, Camera.main);
+        FloatingWordsSpawner.SortByDistance(_activeChoices, _mainCamera);
     }
 }
 }