How to make part smoothly remove?

The players chats the spell name example : "Avada Kedavra"

it launches MainModule function (CreateSpell)

the CreateSpell function launches Touched function

Touched function:

function Touched(Spell,plr)
Spell.Touched:connect(function(Hit)
local HitHumanoid = Hit.Parent:findFirstChild("Humanoid")
if HitHumanoid and Hit.Parent.Name ~= plr.Name and Hit.Name ~= "Handle" then
if Spell.Name == "avada kedavra" then Spell:Destroy() HitHumanoid.Health = 0

CreateSpell function

function Spells.CreateSpell(Color,Name,plr)
 local Ball = script.SpellPart:Clone()
  Ball.Parent = workspace
  Ball.Anchored = false
  Ball.Name = Name
  Ball.BrickColor = BrickColor.new(Color)
  Ball.CFrame = Handle.CFrame * CFrame.new(0,1,-1)
game:GetService("Debris"):AddItem(Ball,10)  
 local Velocity = Instance.new("BodyVelocity")
  Velocity.Parent = Ball
  Velocity.velocity = ((plr.Character.Humanoid.TargetPoint - Ball.Position).unit) * 190     
Touched(Ball,plr)
end

The problem is that the Part that should be removed after it touches player - stutters Here are some pictures of it

1.http://prnt.sc/d48lsc 2.http://prnt.sc/d48mnm 3.http://prnt.sc/d48m4b 4.http://prnt.sc/d48mvl

Is there a way to avoid it?