Why is the touched function still laggy when using remote events?

While creating my gun script, I created a bullet trail using a server script and noticed that it delays for the client.

I solved the problem by creating a remotevent located in ReplicatedStorage so that all scripts can access it.

When the client fires the trail function, it sends the part to the server script. The server script :FireAllClients(), sending the clients name who fired the event and part.

Local Script (located in tool)

local Tool = script.Parent
local TrailEvent = ReplicatedStorage.Trail

function CREATE_TRAIL()
    local Part = Instance.new('Part')
    Part.Parent = workspace
    TrailEvent:FireServer(Part)
end

Server Script (located in workspace)

local TrailEvent = ReplicatedStorage.Trail

function SEND_DATA(player, Part)
    TrailEvent:FireAllClients(player.Name, Part)
end

TrailEvent.OnServerEvent:connect(SEND_DATA)

Local Script (located in a Player's PlayerScripts)

local TrailEvent = ReplicatedStorage.Trail

function TRAIL(playername, part)
    if game.Players.LocalPlayer.Name ~= playername then -- Basically like a filter. It clones the trail part for every client except the player who fired the event
        local trail = part:Clone()
        trail.Parent = workspace
    end
end

TrailEvent.OnClientEvent:connect(TRAIL)