How would I improve this knockback tween script?

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1

Hello, I have gotten this script from MetaDevv, I wanna know how I would make it so I can change how far the tween takes them, and make the tween move them behind instead of in front of the player.

local TweenService = game:GetService("TweenService")

--// Variables

local torso = script.Parent

local intersection

local TIME = 5 -- time it takes for player2 to reach wall

--// Functions

local raycastParams = RaycastParams.new()

raycastParams.FilterDescendantsInstances = {} -- PUT CHARACTER BASEPARTS IN HERE!!

raycastParams.FilterType = Enum.RaycastFilterType.Blacklist

local raycastResult = workspace:Raycast(torso.Position, torso.CFrame.LookVector * 1000, raycastParams)

if raycastResult then -- if part detected

	intersection = raycastResult.Position
	
else
	
	intersection = torso.CFrame.LookVector * 1000

end

local speed = (torso.Position - intersection).Magnitude / TIME -- speed = dist / time

local tween = TweenService:Create(torso, TweenInfo.new(speed), {CFrame = CFrame.new(intersection)}) -- add everything together

tween:Play()
2

to which direction you want to move the players char?

3

I want to move them behind, this script moves them in front.