diff --git a/Engine.Core/Extensions/UniverseExtensions.cs b/Engine.Core/Extensions/UniverseExtensions.cs
index c490e4b..2624712 100644
--- a/Engine.Core/Extensions/UniverseExtensions.cs
+++ b/Engine.Core/Extensions/UniverseExtensions.cs
@@ -8,7 +8,7 @@ public static class UniverseExtensions
         => universe.InstantiateUniverseObject<UniverseObject>(args);
 
     /// <summary>
-    /// Searches through all<see cref="IUniverseObject"/>s to find the specified instance of the type.
+    /// Searches through all <see cref="IUniverseObject"/>s to find the specified instance of the type.
     /// </summary>
     /// <typeparam name="T">Type to be searched through the <see cref="IUniverse"/>.</typeparam>
     /// <returns>The specified type if found; otherwise, throws <see cref="UniverseObjectNotFoundException"/>.</returns>
@@ -16,7 +16,7 @@ public static class UniverseExtensions
         => universe.GetUniverseObject<T>() ?? throw new UniverseObjectNotFoundException($"{universe.GetType().FullName}({universe.Id}) does not contain any {nameof(IUniverseObject)} object of type {typeof(T).FullName}");
 
     /// <summary>
-    /// Searches through all<see cref="IBehaviours"/>s to find the specified instance of the type.
+    /// Searches through all <see cref="IBehaviours"/>s to find the specified instance of the type.
     /// </summary>
     /// <typeparam name="T">Type to be searched through the <see cref="IUniverse"/>.</typeparam>
     /// <returns>The specified type if found; otherwise, throws <see cref="BehaviourNotFoundException"/>.</returns>
@@ -26,6 +26,9 @@ public static class UniverseExtensions
     /// <summary>
     /// Searches through all <see cref="IUniverseObject"/>s and <see cref="IBehaviours"/>s to find the specified instance of the type.
     /// </summary>
+    /// <remarks>
+    /// WARNING: This is more expensive compared to <see cref="GetRequiredUniverseObject{T}(IUniverse)"/> or <see cref="FindRequiredBehaviour{T}(IUniverse)"/> as it combines the two. If you know whether the type is either a type that gets implemented on an <see cref="IBehaviour"/> or <see cref="IUniverseObject"/> use the method appropriate for it for performance.
+    /// </remarks>
     /// <typeparam name="T">Type to be searched through the <see cref="IUniverse"/>.</typeparam>
     /// <returns>The specified type if found; otherwise, throws <see cref="NotFoundException"/>.</returns>
     public static T FindRequired<T>(this IUniverse universe) where T : class
diff --git a/Engine.Core/Extensions/UniverseObjectExtensions.cs b/Engine.Core/Extensions/UniverseObjectExtensions.cs
index 47b8860..16ad5cb 100644
--- a/Engine.Core/Extensions/UniverseObjectExtensions.cs
+++ b/Engine.Core/Extensions/UniverseObjectExtensions.cs
@@ -199,6 +199,9 @@ public static class UniverseObjectExtensions
     /// <summary>
     /// Finds an object of the specified type in the provided <see cref="IUniverseObject"/>s and their <see cref="IBehaviour"/>s.
     /// </summary>
+    /// <remarks>
+    /// WARNING: This is more expensive compared to <see cref="GetUniverseObject{T}(IEnumerable{IUniverseObject})"/> or <see cref="FindBehaviour{T}(IEnumerable{IUniverseObject})"/> as it combines the two. If you know whether the type is either a type that gets implemented on an <see cref="IBehaviour"/> or <see cref="IUniverseObject"/> use the method appropriate for it for performance.
+    /// </remarks>
     /// <typeparam name="T">The type of <see cref="IBehaviour"/> to find.</typeparam>
     /// <returns>The first found instance of the specified type; otherwise, null.</returns>
     public static T? Find<T>(this IEnumerable<IUniverseObject> universeObjects) where T : class
@@ -215,6 +218,9 @@ public static class UniverseObjectExtensions
     /// <summary>
     /// Tries to find an object of the specified type in the provided <see cref="IUniverseObject"/>s and their <see cref="IBehaviour"/>s.
     /// </summary>
+    /// <remarks>
+    /// WARNING: This is more expensive compared to <see cref="TryGetUniverseObject{T}(IEnumerable{IUniverseObject}, out T?)"/> or <see cref="TryFindBehaviour{T}(IEnumerable{IUniverseObject}, out T?)"/> as it combines the two. If you know whether the type is either a type that gets implemented on an <see cref="IBehaviour"/> or <see cref="IUniverseObject"/> use the method appropriate for it for performance.
+    /// </remarks>
     /// <typeparam name="T">The type of <see cref="IBehaviour"/> to find.</typeparam>
     /// <param name="behaviour">When this method returns, contains the <see cref="IUniverseObject"/> of the specified type, if found; otherwise, null.</param>
     /// <returns><see cref="true"/> if an object of the specified type was found in the provided <see cref="IUniverseObject"/>s; otherwise, <see cref="false"/>.</returns>
@@ -227,6 +233,9 @@ public static class UniverseObjectExtensions
     /// <summary>
     /// Searches through the provided <see cref="IUniverseObject"/>s and their <see cref="IBehaviour"/>s to collect a list of the specified type.
     /// </summary>
+    /// <remarks>
+    /// WARNING: This is more expensive compared to <see cref="GetUniverseObjects{T}(IEnumerable{IUniverseObject}, IList{T})"/> or <see cref="FindBehaviours{T}(IEnumerable{IUniverseObject}, IList{T})"/> as it combines the two. If you know whether the type is either a type that gets implemented on an <see cref="IBehaviour"/> or <see cref="IUniverseObject"/> use the method appropriate for it for performance.
+    /// </remarks>
     /// <typeparam name="T">The type of <see cref="IBehaviour"/> to get.</typeparam>
     /// <param name="instances">List of objects found wit the specified type.</param>
     /// <param name="universeObjects">The <see cref="IUniverseObject"/>s to search.</param>