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I've noticed it for a few years now, especially in an instance or if I'm soloing a FP that if I turn a corner and immediately get into a fight my comp gets stuck behind the corner and just stands there and looks pretty ... except for Khem

I completely understand your frustration. I was similarly frustrated. I started a new legacy on a different server ( I've only had one ) after 4 yrs. I thought I'd hate it, honestly though I'm really enjoying it. No credits no legacy perks I'm starting with nothing but knowledge of the game of course. Start over, you may actually enjoy it.

12.5 hrs 83.41% So I guess I'm getting 6 day early access.

I didn't have an issue getting through it. I died a few times, but it's not like there's a penalty for dieing. Did you try resetting the instance?

I'm one of those story line players, you'll never catch me hitting the space bar through a conversation, I'm strictly a PVE'r and I really dislike PVP (simply because I lack the hand eye coordination and I have an issue remembering hot keys) However; I realize if I want to hit that next lvl a little quicker, I need to hit a war zone. All that being said, my sniper does fairly well in most war zones. The only one I get my butt handed to me in is the one where your attacking/defending the ship. I really don't see what the problem is. Since I'm not a fan of PVP and won't do it outside a war zone I probably don't have the entire picture of what the OP is troubled with. I do think the sniper is overpowered for PVE, I had a lvl 40 OP with which I couldn't finish a mission without help, when my lvl 37 sniper when through the mission I dominated through the whole thing.