Isaiah Wright has posted a fantastic new blog that lays out the details for the forthcoming September 2014 Feature update. Players will be pleased to see the specifics of the update that includes instance ownership, crafting UI updates and game client performance improvements.
We‘re always working on the performance of the game with every update, but we have a big batch of improvements coming in this feature pack. We’ve changed the way many of the underlying systems work, making them more cost-effective, which will reduce how often players will be seeing issues caused by performance. This is most notable in large combat situations like WvW and at the PvE world boss events. These improvements affect both the server and client performance, so in these situations, you should see increased frame rates as well!
Read more on the Guild Wars 2 site.