How to make floaty follower (edit) Without delay?

Im trying to make a part follow a player with smooth movement and least amount of lag. I have tried using cframe, tweening and welding. None have given me the desired effect. Heres an example of what I want the part to do https://i.gyazo.com/6df2a8ae62337b4da3139b7f55105478.mp4

Edit:So no I have a block following my player and it looks exactly as I want. The only issue now is that there is a decent delay between the player moving and the block starting to move. Here is the code and a gif to demonstrate. https://gyazo.com/b16234226916461ca073db4aa9497b70

local RunService = game:GetService("RunService")
local Players = game:GetService("Players")
local TweenService = game:GetService("TweenService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")

function createPart(c)
    local part = Instance.new("Part",c)
    part.Size = Vector3.new(1,1,1)
    part.Position = c.HumanoidRootPart.Position + c.HumanoidRootPart.CFrame.LookVector * -2 + Vector3.new(0,2,0)
    return part
end



Players.PlayerAdded:Connect(function(player)
    player.CharacterAdded:Connect(function(character)
        local part = createPart(character)
        local hRoot = character.HumanoidRootPart
        local bodyPosition = Instance.new("BodyPosition",part)
        local bodyGyro = Instance.new("BodyGyro",part)
        local bodyAngle = Instance.new("BodyAngularVelocity",part)
        local offSet = Vector3.new(0,2,0)
        while RunService.Heartbeat:Wait() do
            bodyPosition.Position = hRoot.Position + hRoot.CFrame.LookVector * -2 + offSet
        end
    end)
end)