Are you watching your slave windows as you're performing these actions, because it's as RSM72 says and most of the things you're talking about are handled by latency to the server -- It can play tricks on you if you're only watching your slaves through your main character's screen.

Quote Originally Posted by RSM72 View Post
For your ping - I consider 80-90ms already high I'm usually sitting below 25ms.
25ms to the server is incredibly low and a number like that probably means you're not too far from the datacenter that hosts your server(s). I'd say anything < 100ms is easily tolerable and fine for gameplay.