speed undectected

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

local player = Players.LocalPlayer
local char = player.Character or player.CharacterAdded:Wait()
local hrp = char:WaitForChild("HumanoidRootPart")
local humanoid = char:WaitForChild("Humanoid")

-- speed
local walkSpeed = 5
local runSpeed = 20 
local currentSpeed = walkSpeed


local running = false

UserInputService.InputBegan:Connect(function(input, gpe)
    if gpe then return end
    if input.KeyCode == Enum.KeyCode.LeftShift then
        running = true
        currentSpeed = runSpeed
    
)

UserInputService.InputEnded:((input, gpe)
     input.KeyCode == .KeyCode.LeftShift 
        running = 
        currentSpeed = walkSpeed
    
)


RunService.RenderStepped:((dt)
     moveDir = humanoid.MoveDirection
     moveDir.Magnitude >  
        
        hrp.CFrame = hrp.CFrame + (moveDir * currentSpeed * dt)
    
)