Right played for a couple of hours now so my thoughts.
It's optimised well enough, more than well enough but its far from perfect. I get better or equal frames in BF1 and that looks much better and has far more going on. That said around late 70s to the locked 100 isn't exactly shabby.
It feels like the first but with a few more weapons and a few more Titans (still not loads though but that's not an issue for me), visually it doesn't seem a huge step up but it's not the type of game you get to notice the environment etc due to the pace... Map wise they have gone for a COD style 3 lane approach.
It's quick and took me a few games get up to speed, i'm still not utilising the movement as much as I should but that will come, wall running, sliding, grapple hooks etc... all manic and all fun.
Only played Amped whatever game mode it's called, you capture the zone then if you stay there for another 30 secs you amp it up that double the points gain, if you leave it slowly trickles down back to a normal capture, kinda like this.
All in all its fun its fast and longevity wise? I don't really care as long as I get my fun out of it up to the New Year. With this BF1 and COD all paid for I wont be short of shooters to keep me mindlessly running around.
Oh and I think a team on comms would wreck in this.