Massive 'rubberbanding' just Phoebe

Anyone else experiencing this? I’m an Aussie player and I’ve tried a few melee toons since I started playing and really like the idea of Phoebe but am getting horrendous rubberbanding just on her, all other melee classes seem fine. I constantly get weird collision problems, or find myself being teleported backwards after closing distance.

Even using Phase, I can use it, it doesn’t go off and I’m left standing there… with the cooldown up.

Also cannot get a critical hit for the life of me, where other melee characters I simply aim for the mobs vulnerable areas…

This is PvE too as I’m trying to level her and get more experienced and I’m struggling. I’ve just read some build/helix guides here I’ll give a try but it’s driving me crazy!