From Fedora Project Wiki

What is Issue

some time application in gnome desktop runs fuzzy if live iso run in virtual Manager.

How to Config Virtual Machine

Please check Screen-shot

1. while provide configuration for Virtual machine, before finish, please select Customize configuration before install

VM Setup 01.png

2. Go to Video

3. Click on Model

4. Select 'vga'

VM Setup 2.png

5. Click on 'Apply'

VM Setup 3.png

6. Select begin installation