When ever I overclock my fx 6300 on m5a97 r2.0 to 4.4 it will freeze on flash/Netflix here is a video to show you https://www.youtube.com/watch?v=DIhu8-4LlOg
If you have any questions just ask.
I think you got a very slow internet speed. Check your internet settings. Try to update the Microsoft Silverlight to the newest version and Adobe flash player version.