all games not loading

  Try cleaning and deleting cache and cookies.  It really does help.  And come in thru fresh URL dont come in thru bookmark or favorites.  After that, then you can bookmark the site again (for a while LOL).

Don ‘t know if you have a pop-up blocker.  Sometimes I just refresh/ reload the page, and the pop- up goes away.  If you ‘re playing on a mobile device like a phone or IPad, you can only play 8 of the games, unless you download an alternative browser called Puffin.  If you’re on a computer, you also need the latest version of the Flash player.

  Another hint may be to turn off your screensaver while you are playing, and maybe turn your sound off.  The only game I know that you really need the sound is Score.  

  But there are some things in the background that may slow things down, Like SweetheartPines said, pop ups can slow it down.