2. Never open AVA from Aeria Ignite. Go to your AVA folder and you should see something called NWZLauncher. Make that into a shortcut and use that whenever you play AVA. This way you don't have Aeria Ignite running in the background! Be sure to check and see if Aeria Ignite is not running by going to your task manager. CTRL-Shift-Esc.
3. With the new patch came a new process called the Awesomomium process. Always end that process whenever you start AVA.
4. Get rid of any other unecessary processes.
5. Have you tried GameBooster?
There are more, but this should be enough! Good luck!