One of my sites has a 99/100 Page Speed ranking so I doubt it’s related to the upgrade. If you’d like you can post your URL and plugins you have installed. The community might be able to help out.
happy for you
I achieved prior results with plugins I have presently
like I said, all that is different is the version of WordPress
What does Google Page Speed say to improve? Minify, compression, image optimization and most of the other categories depend on your theme and server settings.
Sorry Patrick, frustrated. It suggests “Serve scaled images”
My load time has increased also
If your score is 45% from not serving scaled images then I would assume your images must be huge? I know that Insights takes this factor into high priority. This scaled image issue is something your theme or image plugins would optimize. Without a link to your site it’s hard to see exactly what’s going on. Please see http://codex.ww.wp.xz.cn/Forum_Welcome#Link_to_Your_Site
the image thing wasn’t an issue with 3.6.1
my settings are 150×150 cropped
300×300 medium
800×800 large
The PageSpeed Insights results says you should compress your images. This has nothing to do with “serve scaled images.” This means that your images are bigger in file size than they need to be. A 75kb image could be 23kb, etc.
Also, on desktop your home page gets a 72/100 as of now. You may want to address the other issues first, I think they will have a bigger impact on loading time.