Cool project, I really enjoyed it. Just one thing, in the movement part you probably want to use Time.fixedDeltaTime instead of Time.deltaTime (deltaTime being the time between two Update(), and fixedDeltaTime being the time between twn FixedUpdate()).
Hey, quick correction. You don't have to use Time.fixedDeltaTime. According to Time.deltaTime Unity Docs. (https://docs.unity3d.com/ScriptReference/Time-deltaTime.html)
'When this is called from inside MonoBehaviour.FixedUpdate, it returns Time.fixedDeltaTime.'