We wanted to let you know that some of the poor performance issues, such as hitching and lag, may be attributed to a limit of 8GB or less of main system memory. While 8GB is our minimum system requirement, those of you who have 12GB or more of system memory should not be experiencing nearly as many of these performance issues. We realize that many players will only have systems of 8GB, which is a fairly standard amount found in laptops and many low or mid-range desktops. We are continually working to improve memory performance in order to ensure 8GB of memory does not cause undue problems playing the game. By extension, performance improvements are being looked at with other hardware components, such as how much video memory the game uses. If you have any questions on what parts of your computer may be a bottleneck for smooth gameplay experience, please let us know. We are happy to help identify them!