I am also having this delay issue with portraits, voice delay, and inventory lag. I do not have Hamachi installed. Disabling my ethernet (wired internet) adapter DID fix it. When I play with wireless internet, I have no issues at all. However, I usually use an Ethernet line to go online, because my wireless adapter is outdated so my wired connection is faster. I would prefer to play with my wired connection and not have to switch to wireless. SO, if you guys are having this issue, and your PC/Laptop/Mac? has a wired AND a wireless connection, playing on wireless with the wired connection disabled WILL fix it. So obviously, Devs, this issue has to do with networking (you already know this), but also specifically with wired ethernet connections (as well as Hamachi).
