diff --git a/source/funkin/backend/system/updating/AsyncUpdater.hx b/source/funkin/backend/system/updating/AsyncUpdater.hx
index af7cfff5..e742e92d 100644
--- a/source/funkin/backend/system/updating/AsyncUpdater.hx
+++ b/source/funkin/backend/system/updating/AsyncUpdater.hx
@@ -101,7 +101,7 @@ class AsyncUpdater {
 		progress.files = files.length;
 		progress.step = DOWNLOADING_ASSETS;
 		trace('starting assets download');
-		doFile([for(e in files) e], [for(e in fileNames) e], function() {
+		doFile(files.copy(), fileNames.copy(), function() {
 			progress.curFile = -1;
 			progress.curFileName = null;
 			progress.files = 1;
diff --git a/source/funkin/editors/charter/Charter.hx b/source/funkin/editors/charter/Charter.hx
index 2ff39aa0..99f6f690 100644
--- a/source/funkin/editors/charter/Charter.hx
+++ b/source/funkin/editors/charter/Charter.hx
@@ -1657,7 +1657,7 @@ class Charter extends UIState {
 		changeNoteSustain(-1);
 
 	function _note_selectall(_) {
-		selection = [for (note in notesGroup.members) note];
+		selection = cast notesGroup.members.copy();
 	}
 
 	function _note_selectmeasure(_) {
diff --git a/source/funkin/editors/charter/CharterBackdropGroup.hx b/source/funkin/editors/charter/CharterBackdropGroup.hx
index e9240ad1..21eeb90f 100644
--- a/source/funkin/editors/charter/CharterBackdropGroup.hx
+++ b/source/funkin/editors/charter/CharterBackdropGroup.hx
@@ -253,7 +253,7 @@ class CharterBackdropDummy extends UISprite {
 
 	public override function draw() {
 		@:privateAccess
-		__lastDrawCameras = [for(c in cameras) c];
+		__lastDrawCameras = cameras.copy();
 	}
 }
 
diff --git a/source/funkin/editors/ui/UISprite.hx b/source/funkin/editors/ui/UISprite.hx
index 5a41cec3..1246e6de 100644
--- a/source/funkin/editors/ui/UISprite.hx
+++ b/source/funkin/editors/ui/UISprite.hx
@@ -69,7 +69,7 @@ class UISprite extends FlxSprite {
 
 	public function drawSuper() {
 		super.draw();
-		__lastDrawCameras = [for(c in cameras) c];
+		__lastDrawCameras = cameras.copy();
 	}
 
 	public function drawMembers() {
diff --git a/source/funkin/game/Note.hx b/source/funkin/game/Note.hx
index b8baf48e..9b06fc81 100644
--- a/source/funkin/game/Note.hx
+++ b/source/funkin/game/Note.hx
@@ -98,6 +98,9 @@ class Note extends FlxSprite
 			return __customNoteTypeExists[path];
 		return __customNoteTypeExists[path] = Assets.exists(path);
 	}
+
+	static var DEFAULT_FIELDS:Array<String> = ["time", "id", "type", "sLen"];
+
 	public function new(strumLine:StrumLine, noteData:ChartNote, sustain:Bool = false, sustainLength:Float = 0, sustainOffset:Float = 0, ?prev:Note)
 	{
 		super();
@@ -115,7 +118,7 @@ class Note extends FlxSprite
 		this.sustainLength = sustainLength;
 		this.strumLine = strumLine;
 		for(field in Reflect.fields(noteData)) {
-			if(!["time", "id", "type", "sLen"].contains(field)) {
+			if(!DEFAULT_FIELDS.contains(field)) {
 				this.extra.set(field, Reflect.field(noteData, field));
 			}
 		}
@@ -290,7 +293,7 @@ class Note extends FlxSprite
 		setClipRect(swagRect);
 	}
 
-	public function setClipRect(rect:FlxRect) {
+	public inline function setClipRect(rect:FlxRect) {
 		this.clipRect = rect;
 	}
 
diff --git a/source/funkin/game/Strum.hx b/source/funkin/game/Strum.hx
index e2b6ccd0..cbce2da4 100644
--- a/source/funkin/game/Strum.hx
+++ b/source/funkin/game/Strum.hx
@@ -74,7 +74,7 @@ class Strum extends FlxSprite {
 	}
 
 	public override function draw() {
-		lastDrawCameras = [for(c in cameras) c];
+		lastDrawCameras = cameras.copy();
 		super.draw();
 	}