FramesPerSecond system, by me

FPS.luau

--!strict

-- ORIGINAL: https://pastebin.com/JBRampUT
-- Modded by UltimateQuack

local runService = game:GetService("RunService")

local fpsLabel = script.Parent

local function GetFPS(delay)
	local startTime = tick()
	local frames = 0
	local heartbeatConnection = runService.Heartbeat:Connect(function()
		frames = frames + 1
	end)
	task.wait(delay)
	heartbeatConnection:Disconnect()
	local elapsedTime = tick() - startTime
	local fps = frames / elapsedTime
	return math.ceil(fps)
end

	while true do
		local fps = GetFPS(0.1)
		if fps >= 60 then
		fpsLabel.TextColor3 = Color3.fromRGB(
			0, 
			255, 
			0
		)
		elseif fps <= 59 and fps > 50 then
		fpsLabel.TextColor3 = Color3.fromRGB(
			255, 
			170, 
			0
		)
		elseif fps <= 49 and fps > 30 then
		fpsLabel.TextColor3 = Color3.fromRGB(
			255,
			85, 
			0
		)
		elseif fps <= 29 then
		fpsLabel.TextColor3 = Color3.fromRGB(
			255, 
			0, 
			0
		)
		end
		fpsLabel.Text = tostring(fps) .. " FPS [" .. "0.1s" .. "]"
	end