I noticed constant redrawing and network reloading when going from chrome on Android 4.4 to 5.0. this happened on going from one tab to another and then switching back to the originally open tab. I haven't tested older releases of chrome on 5.0 to be sure, though.
Also if you have Facebook installed, use version 7.0 or use Facebook lite. It's blocked in the app store in some countries, so you may have to use a mirror site.