I don't notice the flickering, maybe that's a problem with your graphics card
The "blur" is an optical illusion, because of the repeating patterns and noise of the tiles
For example, I removed the dithering in the tiles and the blur stopped:
Thanks for your feedback,.
Hmm, ok that's interesting that you didn't see any flickering. I wonder if there's just some weird setting on my computer. I use Google Chrome and I'm using an MSI GT 70 laptop runnning Windows 8.1 and my NVIDIA GeForce GTX 675MX has the latest drivers.
How did you remove the dithering in the tiles?