Question: I just upgraded to the the Ubuntu 14.10 (Utopic Unicorn) from Ubuntu 14.04 (Trusty Tahr) and the dash is running slow and freezes every now and then.

I don't really want to go back to 14.04 since I would have to start from the beginning, and I just went through the process of getting the OS to work with my hardware. Is there anything I can do to make my computer work better with the OS?

Answer: 
you can disable few results that you dont need much:

* install Unity Tweak Tool

launch it. and open Search

1. disable 'background blur'
2. uncheck 'search online sources'
3. uncheck 'show "more suggestions"'
4. uncheck 'show "recently used" applications'
5. uncheck "enable search of your files" => this is must for more apparent speed up

you can skip any of these if you want.

---

if this does not works you can try light desktop environments like KDE and XFCE. you can install this from software center. install them and log out and select the session and login again.

![ubuntu login screen, select session](https://i.stack.imgur.com/OmeWo.jpg)

![select kde desktop on login](https://i.stack.imgur.com/qHq9G.jpg)
Hope you have enough disk space for your home files or computer storage that runs the ubuntu software. I had the same issue once when I first installed ubuntu on a 7GB partition. But after I increased the disk size/storage it works fine and no freezing. I run a 32-bit laptop, with 2GB RAM and I am enjoying ubuntu 14.10.