Safari flickers when scrolling up and down in Yosemite
I have a 2014 15" MacBook Pro with Yosemite. When I'm browsing websites, Safari starts to flicker, especially when scrolling up and down. I think it's an issue with ads on the page (such as in Facebook), but I'm not sure how to fix it. It's annoying. Refreshing the page sometimes works, but it's not a reliable fix. Also, it's difficult to enter text into text boxes on the page because of the flickering. Has anyone else experienced this issue, and if so how did you fix it? Thanks.
MacBook Pro with Retina display, OS X Yosemite (10.10)