Slower movement sideways

Help and Feedback Scripting Support
#1

I’m making a first person game… How can I make movement slower, the more sideways the player is moving??

local ForwardSpeed = 30
local SidewaysSpeed = 20

runService.Heartbeat:Connect(function()
	
	-- maybe here
	
	
end)
#2

You can change the speed of the player if the player is moving sideways or forward by detecting which direction their moving using Humanoid.MoveDirection.

#3

I’m not sure how… Do i like check the difference between the look direction and move direction or something like that

local moveDirection = humanoid.MoveDirection
local lookDirection = character:WaitForChild("HumanoidRootPart").CFrame.LookVector
	
local d = moveDirection/lookDirection
#4

Just see if the player is pressing A or D key or see using relative velocity?