I have a mid 2011 Retina MBP (8gb ram, 256 flash, 1GB in graphics, 2.3Ghz i7). I've been noticing lately that sites with photos or lots of data are loading extremely slow...for example, my dashboard on Tumblr. It takes a ton of time for short videos to load, gifs, etc and I'm not sure whats causing it. I've cleared the cache for Chrome (primary browser) but I am clueless if there are any advanced steps or personal diagnostics to run to get things back to normal...thank you!