LinearVelocity flings player into the air when colliding with a part

Help and Feedback Scripting Support
1

I have a game that you can get high speeds, it works fine but when you collide with something the player gets launched into the sky. (i can’t lower the MaxForce because in this game players need to get very fast)

Here’s the moviment code:

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

local player = Players.LocalPlayer
local char = script.Parent
local hrp = char.HumanoidRootPart
local humanoid = char.Humanoid

local rootAttachment = hrp:WaitForChild("RootAttachment")

local MOVE_SPEED = player:WaitForChild("leaderstats"):WaitForChild("Speed")
local TURBO_TIME = player:WaitForChild("Values"):WaitForChild("TurboTime")
local TURBO_ENABLED = player:WaitForChild("Values"):WaitForChild("TurboEnabled")
local ACCELERATION = 7
local DECELERATION = 25

local LinearVelocity = Instance.new("LinearVelocity", hrp)
LinearVelocity.Attachment0 = rootAttachment
LinearVelocity.RelativeTo = Enum.ActuatorRelativeTo.World
LinearVelocity.VelocityConstraintMode = Enum.VelocityConstraintMode.Plane
LinearVelocity.PrimaryTangentAxis = Vector3.new(1, 0, 0)
LinearVelocity.SecondaryTangentAxis = Vector3.new(0, 0, 1)
LinearVelocity.MaxForce = math.huge

RunService.Heartbeat:Connect(function(dt)
	local currentAcceleration = ACCELERATION
	local currentDeceleration = DECELERATION

	if humanoid.FloorMaterial == Enum.Material.Air then
		currentDeceleration = 0.6
	end

	local moveDirection = humanoid.MoveDirection

	local speedMultiplier = 1
	local minVelocity = 10
	local maxVelocity = math.huge

	if TURBO_ENABLED.Value then
		speedMultiplier *= 2
		minVelocity = 150
	end

	local targetVelocity = Vector2.new(moveDirection.X, moveDirection.Z) * math.clamp(MOVE_SPEED.Value * 0.1 * speedMultiplier + 100, minVelocity, maxVelocity)

	local deltaVelocity = targetVelocity - LinearVelocity.PlaneVelocity
	local accelerationRate = if moveDirection.Magnitude > 0 then currentAcceleration else currentDeceleration

	LinearVelocity.PlaneVelocity += deltaVelocity * accelerationRate * dt

	hrp.AssemblyLinearVelocity = Vector3.new(hrp.AssemblyLinearVelocity.X, math.clamp(hrp.AssemblyLinearVelocity.Y, -3000, 450), hrp.AssemblyLinearVelocity.Z)
end)