Run it
Copy the script and paste it into your executor.
_G.WS = "120";
local Humanoid = game:GetService("Players").LocalPlayer.Character.Humanoid;
Humanoid:GetPropertyChangedSignal("WalkSpeed"):Connect(function()
Humanoid.WalkSpeed = _G.WS;
end)
Humanoid.WalkSpeed = _G.WS;Script

Universal