Add-Ons or extensions are applications that relate to others to give them a new function such as Flash Player to see games and videos. But beware! However, others may slow down your Internet connection or not even let you access to some sites.
If you suspect that these are reducing performance try to restart your browser with add-ons disabled. If this works for you, you should check which one is causing the problem to disable it and enjoy our games 100%. You can find more information clicking the setting options of your browser: Google Chrome, Internet Explorer, Mozilla Firefox, etc.