And the green animations drag whole CPU and GPU down. Screen become unresponsive and jerky. They consumes lots of GPU performance and drains battery power and make my iphone 5s uncomfortably hot. Real big performance hit they are. Once all resources are collected and the square and flying icons are gone, it works smoothly as before, in every few tens of seconds. It is very annoying and hinders concentrating on real strategic gaming. I want to play slow "The Sims" style game, not quick whack-a-mole arcade game in every few tens of seconds.
Please add some graphics option for simplifying the annoying animations: both the green squares and flying ones. Or auto resource collection option that displays simple indication or without annoying animation.
This is the most annoying feature of this otherwise very good game. Removing the animation or automating resource collection will not harm the fun of this game and save a lot of performance headache for slow old smartphones.