Thanks everyone for the reply,

Highwilds, I'll check those options, I noticed when I hit a mob with shield lob usually I'm running toward them by holding the number 8 on numpad, the number 8 does something to the engaged mobs, like a lock on mob or shift between engaged mobs kind of thing, I don't even know how to explain lol

so I was doing a dungeon earlier today and I start doing shield lob while standing, I think it was ok, I need to do more tests though.