So I've seen a handful of threads on this issue and I am going nuts trying to figure out what to do. I'd really appreciate some opinions and could use some answers to a couple of questions. Story: 1st Mac was a mid 2007 base model Macbook with no upgrades. I used it up until a month ago when the HD failed. The computer was a joy to use from day one til the last day, no issues with it slowing down much. I doubled the RAM to 4GB when I upgraded it to Lion. I always upgraded the OS when I could. 2nd Mac was bought a week ago. $1499 model Macbook Pro Retina 13", 8G RAM and 256G SSD. The user experience is pretty dang sweet for the most part. Surfing the web and clicking around is great. Then I start to notice some choppy scrolling in Safari and also Finder. All settings are default. I think it's no big deal until I load some SlowMo videos from my 5S into iPhoto last night and the computer then behaves like it's 9 years old as I'm trying to play them. Choppy, laggy, some beach balls. Maximizing the screen is a slow effort. I read a bit online and lower the resolution to the lowest setting, barely makes a difference. I'm pretty upset considering my iPhone plays these movies with no problem. My AppleTV also plays them fine even though sometimes it takes a few tries for them to play. Here's my question. I read there are issues with the graphics chip in my new MB not being optimized yet. Is this something that will get fixed in the future through software? I read people hoping for a fix back in Oct 2013 and it doesn't seem fixed yet. Is the Iris chip inherently too weak? I'm still within the return window, I got the MB Pro because I thought it would faster than the Air. The Retina is cool but not imperative, the Air still looked great IMO. Would I be better off with an Air? Or maybe even the non retina Pro? I like the upgradability of the non retina BUT I did make it 7 years on my previous base model Macbook with only doubling the RAM. So it's not a huge deal IMO. FYI, my uses are mainly web surfing, email, itunes, ms office, ichat, airplay videos to TV, iphoto (not really any editing, just a tad maybe), google sketchup (some small woodworking designs, not drawing houses or anything) and watching HD movies on a plane or trip. I would also like to play with imovie and edit some simple movies of my dog or something, nothing professional. Am I the only one having the issue with the slowmo videos in iPhoto? I can't find much on this specific subject. Help is much appreciated!