diff --git a/objects/scenes/demo/demo.tscn b/objects/scenes/demo/demo.tscn
index 854b962..2f3f04d 100644
--- a/objects/scenes/demo/demo.tscn
+++ b/objects/scenes/demo/demo.tscn
@@ -216,7 +216,7 @@ script = ExtResource("2_oekxy")
 WalkAcceleration = 30.0
 StoppingDeceleration = 50.0
 CancellationAcceleration = 50.0
-AirAcceleration = 5.0
+AirAcceleration = 3.0
 MaxFallSpeed = 50.0
 MaxRiseSpeed = 50.0
 MaxRunSpeed = 12.0
diff --git a/project.godot b/project.godot
index 4b03aca..a2e2ec9 100644
--- a/project.godot
+++ b/project.godot
@@ -11,6 +11,7 @@ config_version=5
 [application]
 
 config/name="WrplatGodot"
+config/version="0.1.38"
 run/main_scene="uid://r2lb1ommvj6u"
 config/features=PackedStringArray("4.6", "C#", "Forward Plus")
 config/icon="res://icon.svg"
diff --git a/src/components/PlayerPhysicsController.cs b/src/components/PlayerPhysicsController.cs
index 5376b16..0c31990 100644
--- a/src/components/PlayerPhysicsController.cs
+++ b/src/components/PlayerPhysicsController.cs
@@ -37,6 +37,8 @@ public partial class PlayerPhysicsController : CharacterBody2D {
     private float MaxWalkSpeed { get; set; } = 8f;
     [Export]
     private float MaxAirSpeed { get; set; } = 16f;
+    [Export]
+    private float MaxDoubleJumpFallSpeed { get; set; } = 1f;
 
     [ExportCategory("Objects")]
     [Export]
@@ -193,7 +195,7 @@ public partial class PlayerPhysicsController : CharacterBody2D {
                 }
             }
 
-            if (Input.IsActionJustPressed("jump") && Mathf.Abs(vely) < 2) {
+            if (Input.IsActionJustPressed("jump") && Mathf.Abs(vely) < MaxDoubleJumpFallSpeed) {
                 vely = -_lv;
             }
 
@@ -209,18 +211,15 @@ public partial class PlayerPhysicsController : CharacterBody2D {
         var maxXSpeed = grounded ? Input.IsActionPressed("run") ? MaxRunSpeed : MaxWalkSpeed : MaxAirSpeed;
         var maxYSpeed = vely > 0 ? MaxFallSpeed : MaxRiseSpeed;
         var (absvelx, absvely) = (Mathf.Abs(velx), Mathf.Abs(vely));
-        float xcancel = 0, ycancel = 0;
-        if (absvelx > maxXSpeed) xcancel = -Math.Sign(velx) * CancellationAcceleration * (float)delta;
-        if (absvely > maxYSpeed) ycancel = -Math.Sign(vely) * CancellationAcceleration * (float)delta;
-        if (Mathf.Abs(xcancel) + 0.1 > absvelx && xcancel != 0) velx = 0;
-        else velx += xcancel;
-        if (Mathf.Abs(ycancel) + 0.1 > absvely && ycancel != 0) vely = 0;
-        else  vely += ycancel;
+        if (absvelx > maxXSpeed) 
+            velx = Mathf.Sign(velx) * Mathf.Max(absvelx - CancellationAcceleration * (float)delta, maxXSpeed);
+        if (absvely > maxYSpeed) 
+            vely = Mathf.Sign(vely) * Mathf.Max(absvely - CancellationAcceleration * (float)delta, maxYSpeed);
 
         DebugTextLabel.Text = 
             $"grounded: {grounded}\n" + 
-            $"vely: (v+{ycancel}=){vely}\n" +
-            $"velx: (v+{xcancel}=){velx}\n" +
+            $"vely: {vely}\n" +
+            $"velx: {velx}\n" +
             $"lv  : {_lv:F2} or {_lv/(float)delta:F2}\n" + 
             $"lcrc : {Predictor.AnyHit(PredictiveCollisions.Location.BottomLeft)}/{Predictor.AnyHit(PredictiveCollisions.Location.BottomRight)}";
         // Force = new Vector2(0, forcey);