King Crimson time erase effect

how to make the map transparency to 1 without any delay

Does the map exists out of two or more parts?

If so you can just loop through them all with a for loop and set every part their transparency to 1

yep and i even try

for i , v in pairs(map:GetChildren()) do
if v:IsA(“BasePart”) and is also delay

for i , v in pairs(map:GetChildren()) do
	if v:IsA("BasePart") then
		v.Transparency = 1
	end
end

And if there are many parts in your map than there is always a bit of delay since it has to go through all parts one by one (but it shouldn’t be a big delay since for loops are relatively fast