Performance issues aside, the new update is amazing. I was a backer for the kickstarter for this game, but when it first came out, I was pretty disappointed. The game had promise, but the weapon handling felt awful...and that's fundamental to the enjoyment for me. Weapons felt wooden and unintuitive, recoil felt odd...I just never got any pleasure playing it. I've come back to the game a few times to give it another chance, but despite improvements in other areas, I just couldn't get on with the clunkiness.
This update has changed all that. The new animation system has transformed the feel of the game. Weapons now feel much more fluid; the way you lift them to the eye, the way the weapon moves as you move, and the way that the gun seems to recoil, rather than your entire screen. It all feels so much better, and I now find myself actually wanting to play and get involved, whereas before, the game felt obstructive and frustrating.
Good news is the devs are aware of the performance issues. Word is they are looking to get a hot fix out this weekend. In the meantime, have a look on the HLL Reddit, there's a few tips posted there to help improve things in the meantime. I've turned off AA and lowered the dead body despawn timer, and even Carentan plays at an acceptable rate (apart from the weird drops to 10FPS occasionally, which seems to plague everyone on the server at the same time). It has always been a resource intensive game, but as ever with UE4 engined games, optimisation needs a lot of work.