My Explosion Script Doesn't seem like an explosion?

So i have made an explosion script, but once i press the key, the hitbox and everything is made, but the explosion waits then does it, sorta like (sorry this will sound dumb.) "Boom!"...."Boom!"...."Boom!", I want it to happen all at once, like one huge explosion but, do not see my problem here!, any help?

Player = game.Players.LocalPlayer
repeat wait() until Player.Character or Player.Character.Parent
Character = Player.Character
local ECombatCombo = 0
Enabled = false
MoveLocked = false
--Explosive Combat, Level 5 (1st Move)
game:GetService("UserInputService").InputBegan:connect(function(input)
	if input.KeyCode ~= Enum.KeyCode.Z then return end;
	if ECombatCombo == 0 and Enabled == false then
		Enabled = true
		print("Right Swing")
		game:GetService("Chat"):Chat(Character.Head, "Ha!")
		local Animation = Character.Humanoid:LoadAnimation(game.ServerStorage.Animations.Explosion.ERightPunch)
		local current = Animation
		current:Play()
		wait(0.3)
		local Particle = game.ServerStorage.Particles.BombEffect:Clone()
		Particle.Enabled = true
		Particle.Parent = Character.RightHand
		local hitbox = Instance.new("Part", game.Workspace)
		hitbox.CanCollide = false
		hitbox.Anchored = true
		hitbox.TopSurface = 0
		hitbox.BottomSurface = 0
		hitbox.BrickColor = BrickColor.new("Bright red")
		hitbox.Size = Vector3.new(1, 1, 1)
		hitbox.CFrame = Character.RightHand.CFrame
		hitbox.Rotation = Vector3.new(0, 0, 0)	
		
		--Create Explosion
		local function Explode()
		local Fire = game.ServerStorage.MeshEffects.ExplosiveFire:Clone()
		Fire.Parent = game.Workspace
		Fire.Position = hitbox.Position
		Fire.CFrame = Fire.CFrame*CFrame.Angles(0, math.random(10, 25), 0)
	
		local Smoke = game.ServerStorage.MeshEffects.ExplosiveSmoke:Clone()
		Smoke.Parent = game.Workspace
		Smoke.Position = hitbox.Position
		Smoke.CFrame = Smoke.CFrame*CFrame.Angles(0, math.random(20, 35), 0)
		local loop = 0
		repeat 
			loop = loop +1
			Fire.Mesh.Scale = Fire.Mesh.Scale+Vector3.new(1, 1, 1)
			Smoke.Mesh.Scale = Smoke.Mesh.Scale+Vector3.new(1, 1, 1)
			Fire.Transparency = Fire.Transparency+0.1
			Smoke.Transparency = Smoke.Transparency+0.1
			wait()
		until loop == 10
end	
		
		for boom = 1, 10 do
			--Make Explosion Happen
			Explode()
		end
		ECombatCombo = 1
		current:Stop()
		Enabled = false
		wait(0.3)
		hitbox:Remove()
		Particle.Enabled = false
		wait(3)
		Particle:Remove()

Also there is no "End" at the end of the line because i made the script a key press combo, please do not add one.