local function spawnNow callback local bindable Instance new BindableE

local function spawnNow(callback, ...)
    local bindable = Instance.new("BindableEvent")
    bindable.Event:Connect(callback)
    bindable:Fire(...)
    bindable:Destroy()
end

local function f() end

local t1 = tick()
for _ = 1, 10000 do
	spawnNow(f, 123)
end
print("fast spawn", tick()-t1) --> 0.089616775512695

local t2 = tick()
for iteration = 1, 10000 do
	coroutine.wrap(f)(123)
end
print("coroutine wrap", tick()-t2) --> 0.023818254470825