Issue with FireCast Module

Please watch the video below for what I’m saying to make sense

As you can see its a top down shooter game, very early in the works, anyways the player has a local script inside of starterplayerscripts rotating the root to the mouse hit, heres thats script:

local player = game.Players.LocalPlayer
local camera = workspace.CurrentCamera
local char = player.Character or player.CharacterAdded:Wait()

local ReplicatedStorage = game:GetService("ReplicatedStorage")

local moveForwardsEvent = ReplicatedStorage.Movement.Forwards

local UIS = game:GetService("UserInputService")

local root = char:WaitForChild("HumanoidRootPart")

local RS = game:GetService("RunService")

local mouse = player:GetMouse()

local raycastParams = RaycastParams.new()
raycastParams.FilterType = Enum.RaycastFilterType.Exclude
raycastParams.FilterDescendantsInstances = {char}

function cameraAdjust()
	local Height = Vector3.new(0, 40, 0)
	local rotation = CFrame.Angles(math.rad(-90), math.rad(0), math.rad(0))

	camera.CFrame = CFrame.new(root.Position + Height) * rotation
end

mouse.Move:Connect(function()
	local MousePos = mouse.Hit.Position
	
	local direction = (MousePos - root.Position).unit

	root.CFrame = CFrame.lookAt(root.Position, Vector3.new(mouse.Hit.X, root.Position.Y, mouse.Hit.Z))
end)

mouse.Button1Down:Connect(function()
	local direction = root.Position - mouse.Hit.Position
	local raycast = workspace:Raycast(root.Position, direction, raycastParams)


--	moveForwardsEvent:FireServer(true)
end)

mouse.Button1Up:Connect(function()
	--moveForwardsEvent:FireServer(false)
end)



RS:BindToRenderStep("Camera", 210, cameraAdjust)

The script using FireCast is this

local tool = script.Parent
local shootEvent = script.Parent:WaitForChild("Shoot")

local BulletsFolder = game.Workspace:WaitForChild("Bullets")

local FastCast = require(game.ReplicatedStorage.FastCastRedux)
-- FastCast.VisualizeCasts = true
local castBehavior = FastCast.newBehavior()

local castParams = RaycastParams.new()
castParams.FilterType = Enum.RaycastFilterType.Exclude
castParams.IgnoreWater = true


local bulletTemplate = Instance.new("Part")
bulletTemplate.Anchored = true
bulletTemplate.CanCollide = false
bulletTemplate.Size = Vector3.new(0.1, 0.1, 4) 
bulletTemplate.Material = Enum.Material.Neon
bulletTemplate.BrickColor = BrickColor.new("Yellow flip/flop")

castBehavior.RaycastParams = castParams
castBehavior.CosmeticBulletContainer = BulletsFolder
castBehavior.CosmeticBulletTemplate = bulletTemplate

local function Hit(cast, result, velocity, bullet)
	local hit = result.Instance
	local character = hit:FindFirstAncestorWhichIsA("Model")
	if character and character:FindFirstChild("Humanoid") then
		character.Humanoid:TakeDamage(20)
	end
	
	if bullet then
		bullet:Destroy() 
	end

end

local function onLengthChanged(cast, lastPoint, direction, length, velocity, bullet)
	if bullet then
		local bulletLength = bullet.Size.Z / 2
		local offset = CFrame.new(0, 0, -(length - bulletLength))
		bullet.CFrame = CFrame.lookAt(lastPoint, lastPoint + direction):ToWorldSpace(offset)
	end
end

local function equipped()
	castParams.FilterDescendantsInstances = {tool.Parent, BulletsFolder}
end

local caster = FastCast.new()

local function shoot(player, mousePosition)
	local firePoint = script.Parent.Barrel.FirePoint
	local origin = firePoint.WorldPosition
	local direction = player.Character.HumanoidRootPart.CFrame.LookVector.Unit

	caster:Fire(origin, direction * 100, 100, castBehavior)
end



tool.Equipped:Connect(equipped)
shootEvent.OnServerEvent:Connect(shoot)
caster.LengthChanged:Connect(onLengthChanged)
caster.RayHit:Connect(Hit)

If the player rotates too fast the bullet will be delayed, not firing from the tip of guns barrel, as it should.

Help is appreciated

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