Tween Lagging In Roblox App?

Help and Feedback Scripting Support
#1

Hey Guys! I used this door script made by another person and was wondering why it was lagging on the roblox app. This doesn’t happen in studio just the roblox app.

Screenshot 2025-04-25 211737

local ts = game:GetService("TweenService")

local doors = script.Parent:GetChildren()

local function Tween(object, goal, easingStyle, Tweentime)
	local tween = ts:Create(object, TweenInfo.new(Tweentime, easingStyle), goal)
	
	return tween
end

for i, model in pairs(doors) do
	if model:IsA("Model") then
		for i, part in pairs(model:GetChildren()) do
			if part ~= model.PrimaryPart and part:IsA("BasePart") then
				local weld = Instance.new("WeldConstraint")
				weld.Parent = model.PrimaryPart
				weld.Part0 = model.PrimaryPart
				weld.Part1 = part
				
				part.Anchored = false
			end
		end
	end
end

for i, model in pairs(doors) do
	if model:IsA("Model") then
		local open = false
		local db = false
		
		local prompt1 = Instance.new("ProximityPrompt")
		prompt1.Parent = model.Handle1
		prompt1.ActionText = "Open"
		prompt1.MaxActivationDistance = 7
		prompt1.Style = Enum.ProximityPromptStyle.Custom

		
		local prompt2 = Instance.new("ProximityPrompt")
		prompt2.Parent = model.Handle2
		prompt2.ActionText = "Open"
		prompt2.MaxActivationDistance = 7
		prompt2.Style = Enum.ProximityPromptStyle.Custom
		
		prompt1.Triggered:Connect(function(player)
			if db == false then
			db = true
			
			if open  then
				open = false
				prompt1.ActionText = "Open"
				prompt2.ActionText = "Open"
				
				local tween = Tween(model.PrimaryPart, {CFrame = model.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(100), 0)}, Enum.EasingStyle.Sine, 1)
				tween:Play()
			else
				open = true
				prompt1.ActionText = "Close"
				prompt2.ActionText = "Close"
				local tween = Tween(model.PrimaryPart, {CFrame = model.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(-100), 0)}, Enum.EasingStyle.Sine, 1)
				tween:Play()

			end
			task.wait(1)
			db = false
			end
		end)
		
		prompt2.Triggered:Connect(function(player)
			if db == false then
				db = true

				if open  then
					open = false
					prompt1.ActionText = "Open"
					prompt2.ActionText = "Open"

					local tween = Tween(model.PrimaryPart, {CFrame = model.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(100), 0)}, Enum.EasingStyle.Sine, 1)
					tween:Play()
				else
					open = true
					prompt1.ActionText = "Close"
					prompt2.ActionText = "Close"
					local tween = Tween(model.PrimaryPart, {CFrame = model.PrimaryPart.CFrame * CFrame.Angles(0, math.rad(-100), 0)}, Enum.EasingStyle.Sine, 1)
					tween:Play()

				end
				task.wait(1)
				db = false
			end
		end)
	end
end
#2

If you want it to be smooth, run the tween in a clients script.

Unfortunately server tweens are stuttery and there is nothing you can do about it

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