diff --git a/osu.Game/Database/ModelManager.cs b/osu.Game/Database/ModelManager.cs
index 5ecf1e0080..7a5fb5efbf 100644
--- a/osu.Game/Database/ModelManager.cs
+++ b/osu.Game/Database/ModelManager.cs
@@ -81,19 +81,16 @@ namespace osu.Game.Database
         }
 
         /// <summary>
-        /// Add a file from within an ongoing realm transaction. If the file already exists, it is overwritten so long as <paramref name="overwrite"/> is true.
+        /// Add a file from within an ongoing realm transaction. If the file already exists, it is overwritten.
         /// </summary>
-        public void AddFile(TModel item, Stream contents, string filename, Realm realm, bool overwrite = true)
+        public void AddFile(TModel item, Stream contents, string filename, Realm realm)
         {
-            if (overwrite)
-            {
-                var existing = item.GetFile(filename);
+            var existing = item.GetFile(filename);
 
-                if (existing != null)
-                {
-                    ReplaceFile(existing, contents, realm);
-                    return;
-                }
+            if (existing != null)
+            {
+                ReplaceFile(existing, contents, realm);
+                return;
             }
 
             var file = realmFileStore.Add(contents, realm);
diff --git a/osu.Game/Skinning/SkinImporter.cs b/osu.Game/Skinning/SkinImporter.cs
index aba14efb2f..8147287eec 100644
--- a/osu.Game/Skinning/SkinImporter.cs
+++ b/osu.Game/Skinning/SkinImporter.cs
@@ -59,7 +59,6 @@ namespace osu.Game.Skinning
 
             skinInfoLive.PerformWrite(skinInfo =>
             {
-                // Not sure if this deletes the files from the storage or just the database.
                 skinInfo.Files.Clear();
 
                 string[] filesInMountedDirectory = Directory.EnumerateFiles(task.Path, "*.*", SearchOption.AllDirectories).Select(f => Path.GetRelativePath(task.Path, f)).ToArray();
@@ -68,7 +67,9 @@ namespace osu.Game.Skinning
                 {
                     using var stream = File.OpenRead(Path.Combine(task.Path, file));
 
-                    modelManager.AddFile(original, stream, file, Realm.Realm, false);
+                    // The GetFile call in this method is *really* expensive, and we are certain that the file does not exist in the skin yet.
+                    // Consider adding a method to add a file without checking if it already exists. Or add the file directly to the skin.
+                    modelManager.AddFile(original, stream, file);
                 }
             });