Kali 2016.2 - GNOME Startup is very slow

Hello Everybody

i'm using Kali 2016.2 , It's very good but GNOME Startup is very slow .

+ When I start computer and login -> It's Take 30 Second to go Desktop Screen
+ When I restart shell with ALT + F2 , r and ENTER -> Also 30s
+ When I locked with CTRL + L -> Also 30s

MY COMPUTER :

RAM : 2GB, CPU : 3320M, SSD : 128 Gb (350 MB/s)

=> The Previous KALI VERSION only take 2s , How can I fix this problem in KALI 2016.2 ????

SOrry for my bad english !!!! I'm VIetnamese !