I noticed that on Mobile Safari when I switch to another page it stutters a lot. I'm using paper buttons and because of the ripple effect this lag is really noticeable - you can check an example here - http://nikolaydyankov.com/dev/4/#!/statement
Try to open the sidebar and click a button. Notice how the ripple effect lags, but only if you try to switch pages. If you try to load the same page that is currently visible, there is no lag. So the issue must be with core-pages switching the pages.
I noticed that on Mobile Safari when I switch to another page it stutters a lot. I'm using paper buttons and because of the ripple effect this lag is really noticeable - you can check an example here - http://nikolaydyankov.com/dev/4/#!/statement
Try to open the sidebar and click a button. Notice how the ripple effect lags, but only if you try to switch pages. If you try to load the same page that is currently visible, there is no lag. So the issue must be with core-pages switching the pages.