How do I get to loops running at the same time changing CFrame?

Hi, I'm trying to make a script that will creates multiple bricks at random positions that move upwards after being created. I've managed to succeed with the first part, but I have no idea how to make the bricks move up after being created.

I've tried using coroutines to make two loops work together, but it didn't work well at all and the bricks moved upwards slower over time and became less smooth. Here's a video showing the problem.

I'm really stumped by this so any help would be appreciated, thanks!

Here's the code:

local debris = game:GetService("Debris")

local cam = workspace.CurrentCamera
local rand = math.random
local num = 50

while true do
	for i = 0, 10 do
		local brick = Instance.new("Part")
		brick.Anchored = true
		brick.CanCollide = false
		brick.Size = Vector3.new(1, 1, 1)
		brick.Parent = workspace
		brick.CFrame = CFrame.new(cam.CFrame.Position + (cam.CFrame:VectorToWorldSpace(Vector3.new(0, 0, 0)) + Vector3.new(rand(-num, num), rand(-num, num), rand(-num, num))))
		debris:AddItem(brick, 0.75)
		
		coroutine.resume(coroutine.create(function() --part that moves bricks up
			while true do
			brick.CFrame = brick.CFrame * CFrame.new(0, 0.1, 0)
			wait()
			end
		end))
	end
	wait()
end

EDIT: After numerous replies which haven't addressed the problem, I think I phrased my problem extremely poorly, which I apologize for. Even while trying to thread the two loops, the bricks very quickly lose speed and move extremely roughly.

you need a bodyForce on those bricks so u need to do: local force = Instance.new("BodyForce") force.Parent = brick force.Force = Vector3.new(0, 1200, 0)--a newly created block floats at 1100

spawn(function()

Hi, based on the answer from some brainlet telling you to change your methods, I've got a better solution. Coroutines, while Roblox Lua doesn't let you switch Lua states, you can start coroutines which is equivalent to starting new threads in programming languages like Javascript, etc.

https://developer.roblox.com/api-reference/lua-docs/coroutine

Best method for you right now, as it's obvious you want to stick with CFrame.