In my game, I have about 50 zombies on the map. Most of the zombies die without lag, however, sometimes the zombies don't die even though the health appears to be 0.

I have two scripts:

local larm = script.Parent:FindFirstChild("Left Arm")
local rarm = script.Parent:FindFirstChild("Right Arm")

function findNearestTorso(pos)
	local list = game.Workspace:children()
	local torso = nil
	local dist = 1000
	local temp = nil
	local human = nil
	local temp2 = nil
	for x = 1, #list do
		temp2 = list[x]
		if (temp2.className == "Model") and (temp2 ~= script.Parent) then
			temp = temp2:findFirstChild("Right Arm")
			human = temp2:findFirstChild("Humanoid")
			if (temp ~= nil) and (human ~= nil) and (human.Health > 0) then
				if (temp.Position - pos).magnitude < dist then
					torso = temp
					dist = (temp.Position - pos).magnitude
				end
			end
		end
	end
	return torso
end

while wait(0.1) do
	local target = findNearestTorso(script.Parent.Torso.Position)
	if target ~= nil then
		script.Parent.Humanoid:MoveTo(target.Position, target)
	end
	if script.Parent ~= nil then 
		if script.Parent.Humanoid.Health <= 30 then
			script.Parent.Humanoid.Health = -1
		end
	end

end

And the respawn script:

name="Humanoid"

robo=script.Parent:clone()

while wait(0.1) do
	if script.Parent.Humanoid.Health<1 then
		wait(1)
		robot=robo:clone()
		robot.Parent=script.Parent.Parent
		robot:makeJoints()
		script.Parent:remove()
	end
end

There was no lag before I changed my game to Filtering Enabled.

Anonymous