How can I make my build mode camera move a constant speed and not gain speed over time?

I am working on a camera system for my build mode, however I want my camera to move at a constant speed, like it does in bloxburg, so I used cframes to make the camera move and it does just that and in the right direction, but over time it gains speed. How do I prevent it from gaining speed? I want the cameras speed to stay constant.

Local Script:

--Miscellaneous
local player = game.Players.LocalPlayer
local camera = workspace.CurrentCamera
local mouse = player:GetMouse()
local initiate = game.ReplicatedStorage.Binds.InitiateBuildMode
local garageCam = workspace.Garage.FrontEndCamera
local garage = workspace.Garage
local connects = {}
local willEnd

--Services
local UserInputService = game:GetService("UserInputService")
local RunService = game:GetService("RunService")

--Configurations
local cameraSpeed = 0.09
local sensitivity = 500
local Y = 0

local function begin()
	willEnd = false
	connects.begin = UserInputService.InputBegan:Connect(function(input, processed)
		while wait() do
			if UserInputService:IsKeyDown(Enum.KeyCode.W) then
				if not collisionsDetected(camera.CFrame.Position, camera.CFrame.LookVector * 1.5) then
					camera.CFrame = camera.CFrame + camera.CFrame.LookVector.Unit * cameraSpeed
				end
			end
					
			if UserInputService:IsKeyDown(Enum.KeyCode.S) then
				if not collisionsDetected(camera.CFrame.Position, -camera.CFrame.LookVector * 1.5) then
					camera.CFrame = camera.CFrame + -camera.CFrame.LookVector.Unit * cameraSpeed
				end
			end
					
			if UserInputService:IsKeyDown(Enum.KeyCode.A) then
				if not collisionsDetected(camera.CFrame.Position, -camera.CFrame.RightVector * 1.5) then
					camera.CFrame = camera.CFrame + -camera.CFrame.RightVector.Unit * cameraSpeed
				end
			end
					
			if UserInputService:IsKeyDown(Enum.KeyCode.D) then
				if not collisionsDetected(camera.CFrame.Position, camera.CFrame.RightVector * 1.5) then
					camera.CFrame = camera.CFrame + camera.CFrame.RightVector.Unit * cameraSpeed
				end
			end
			
			if UserInputService:IsKeyDown(Enum.KeyCode.Q) then
				if camera.CFrame.Y <= garage.Ceiling.CFrame.Y - 1 then
					camera.CFrame = camera.CFrame + camera.CFrame.UpVector.Unit * cameraSpeed
				end
			end
			
			if UserInputService:IsKeyDown(Enum.KeyCode.E) then
				if camera.CFrame.Y >= garage.Floor.CFrame.Y + 1 then
					camera.CFrame = camera.CFrame + -camera.CFrame.UpVector.Unit * cameraSpeed
				end
			end
			
			if UserInputService:IsMouseButtonPressed(Enum.UserInputType.MouseButton2) then
				local delta = UserInputService:GetMouseDelta()
				UserInputService.MouseBehavior = Enum.MouseBehavior.LockCurrentPosition
				Y = delta.X / sensitivity
			else
				UserInputService.MouseBehavior = Enum.MouseBehavior.Default
				Y = 0
			end
			
			if willEnd then
				for _, component in pairs(connects) do
					component:Disconnect()
				end
				
				break
			end
		end
	end)
	
	script.Parent.X.MouseButton1Click:Connect(function()
		willEnd = true
	end)
	
	RunService:BindToRenderStep("Update", Enum.RenderPriority.Camera.Value, rotateCamera)
end

function collisionsDetected(startingPosition, endingPosition)
	local collision = workspace:Raycast(startingPosition, endingPosition)
	
	if collision then
		return true
	end

	return false
end

function rotateCamera()
	camera.CFrame = camera.CFrame * CFrame.Angles(0, -Y, 0)
end

initiate.Event:Connect(begin)

try using an if statement to constantly check its speed