Not sure what they did in the last few updates but the game runs a lot smoother for me. I had upgraded my system a few months ago to the following.
FX-8320 3.5GHZ
GTX 960 2GB
Windows 7 Home Premium 64bit (previously had)
8GB Ram (previously had)
Even after the upgrade Star Citizen felt choppy. Similar to when I had my GTX 560 1GB and my AMD Phenom II X4 925 2.8GB (or I had the 560 in with the FX-8320 because I got that before the new graphics card. One of the two but likely the later.). However what they did recently made the upgrade worthwhile because I'm now noticing a difference and the game defaulted my graphics setting to very high and only reason I noticed was because I checked the settings because the game was looking different.
FX-8320 3.5GHZ
GTX 960 2GB
Windows 7 Home Premium 64bit (previously had)
8GB Ram (previously had)
Even after the upgrade Star Citizen felt choppy. Similar to when I had my GTX 560 1GB and my AMD Phenom II X4 925 2.8GB (or I had the 560 in with the FX-8320 because I got that before the new graphics card. One of the two but likely the later.). However what they did recently made the upgrade worthwhile because I'm now noticing a difference and the game defaulted my graphics setting to very high and only reason I noticed was because I checked the settings because the game was looking different.