Custom movement system moves player infinitely

Help and Feedback Scripting Support
#1

So I’m trying to achieve source like movement for my game, and it has acceleration and deceleration.

However I noticed that if you press a movement button (WASD) while spawning, you start to constantly move in the opposite direction until you reset

the code is a modified version of This Code by boatbomber using Quenty’s Spring module, here it is:

local Player = game.Players.LocalPlayer
local Character = game.Players.LocalPlayer.Character
local Humanoid = Character:WaitForChild("Humanoid")
local HumanoidRootPart = Character:WaitForChild("HumanoidRootPart")

local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")

local Spring = require(script:WaitForChild("SpringModule"))

local v3 = Vector3.new

local Direction = Spring.new(v3())
Direction.Speed = 8

local Front = v3(0,0,1)
local Side = v3(1,0,0)

UserInputService.InputBegan:Connect(function(Input,GameProcessedEvent)
	if not GameProcessedEvent and Input.UserInputType == Enum.UserInputType.Keyboard then
		--Handle movement
		if Input.KeyCode == Enum.KeyCode.W then
			Direction.Target = Direction.Target - Front

		elseif Input.KeyCode == Enum.KeyCode.S then
			Direction.Target = Direction.Target + Front

		elseif Input.KeyCode == Enum.KeyCode.A then
			Direction.Target = Direction.Target - Side

		elseif Input.KeyCode == Enum.KeyCode.D then
			Direction.Target = Direction.Target + Side
		end
	end
end)

UserInputService.InputEnded:Connect(function(Input,GameProcessedEvent)
	if not GameProcessedEvent and Input.UserInputType == Enum.UserInputType.Keyboard then
		--Handle movement
		if Input.KeyCode == Enum.KeyCode.W then
			Direction.Target = Direction.Target + Front

		elseif Input.KeyCode == Enum.KeyCode.S then
			Direction.Target = Direction.Target - Front

		elseif Input.KeyCode == Enum.KeyCode.A then
			Direction.Target = Direction.Target + Side

		elseif Input.KeyCode == Enum.KeyCode.D then
			Direction.Target = Direction.Target - Side
		end
	end
end)

RunService:BindToRenderStep("Walking", 100, function()
	Player:Move(Direction.Position, true)
end)

Any help would be greatly appreciated.