I don't experience these lags.
You can try to Flash updated firmware, but I don't think it will correct this problem if it is software.
I personally disable animations to speed up the display :
- Head over to Developer Options.
- Scroll down until you find Window Animation Scale, Transition Animation Scale, and Animator Duration Scale.
- Here, you can play with all three options, and see which one brings the best results for you. Each animation scale can go from Off to 10x.If your Android phone feels slugish, you may consider tweaking Animation scale and reducing or disabling animations. Here's how.mobileinternist.com
Thanks for taking the time to reply. I've already disabled animations, I prefer it that way. If the firmware is not the issue I am at a loss to explain the relatively poor performance. I might try a reinstall with updated firmware and see what happens.