Making part look at target not always working

Help and Feedback Scripting Support
#1

So when the target moves further and further away, the FirePoint no longer aligns the orientation at the target.

Code:

local function AimAtTarget()
	if target and target.PrimaryPart then
		local currentCFrame = HumanoidRootPart.CFrame
		local targetPosition = target.PrimaryPart.Position
		local lookVector = (targetPosition - FirePoint.Position).Unit
		local newCFrame = currentCFrame:Lerp(CFrame.new(HumanoidRootPart.Position, HumanoidRootPart.Position + lookVector * Vector3.new(1, 0, 1)), 0.1)
		HumanoidRootPart.CFrame = newCFrame
	end
end

RunService.Heartbeat:Connect(function()
	AimAtTarget()
end)