Where has this annoying batch of adverts come from? Every time you open a new page, it flicks on causing the screen to jump down. OK if the Club gets paid for it I guess.
I think you might have a browser hijacker Chris.
Run the free version of ADWCleaner which you can download from
https://toolslib.net/downloads/finish/1/If that doesn't fix it, get the free version of Malwarebytes from
http://www.malwarebytes.org/antimalware/ and run a full scan on your system.