How do you use BindToRenderStep with a camera?

I am attempting to use BindToRenderStep to create a camera that follows another object around. The "view"part is welded to the "main". The script itself is named "CameraScript" to override the default. It works great in studio mode but experiences a major FPS drop in online mode. I have already tried turning FilteringEnabled on and off. This is the code I am testing out:

local cam = game.Workspace.CurrentCamera
local runService = game:GetService("RunService")

cam.CameraType = Enum.CameraType.Scriptable

local function onRenderStep()
    cam.CoordinateFrame = CFrame.new(view.Position,main.Position)
end

runService:BindToRenderStep("Camera", Enum.RenderPriority.Camera.Value, onRenderStep)

Any help would be greatly appreciated!