All I can think of is keeping it dust free, well ventilated, turn off some effects and upgrade to a larger SSHD. The only other things to improve performance involves a router than can handle very heavy loads and upgrading your internet connections speed and/or bandwidth. At some point (everyone get's it) there's going to be a ton of data being sent back and forth, and the bottle neck will be at it's slowest point. So if there's more people in one general area or spot, doing something to the same target, or full server. Then it wont matter. If everything is at max performance gameplay will slow down and lag slightly for the sake of processing all that data. Now if you are always getting performance issues with everything else. Check your HD/system, Router, and ISP. Usually it'll be one of those three.