Many weeks have passed since I spoke of the horrid experience of WhatsApp on WP 8.1. Well, I am glad to say that after 2 updates to the preview for developers and 2 updates to WhatsApp, things are looking much better.
Windows Phone is now on version 8.10.12393.890 while WhatsApp is on version 2.11.494.
Finally, battery drain isnt as bad, the phone doesn’t heat as much, entering and exiting conversations is back to how it was in WP 8, and lastly we can set chat wallpapers!
On Microsoft’s side, it seems that the lack of optimizations for the Lumia 1520 chipset in WP 8.1 were holding it back before. These updates have fixed many performance issues and the coming Cyan update in the end of June is beginning to look promising.