2:gamebooster (key: D4B5F-29CDA-EF33C-56060)
3:close firefox,explorer etc.
4:go to task manager and look if you have plugin-container.exe opened, if you do close it its the plugin for watch vid on youtube and it take some speed.(if you want it back just refrest your browser )
5: put your game graphic to low
6: i cant think of any/