Lagging/freezing problem – Pixel Art － Color by Number Review

First, I must say I love this app. It’s fun and a nice way to calm myself down after a long day. However, there has been a lag problem lately. The game would become unresponsive for 5-30 seconds while switching ads at the top of the screen. I have no problems with the ads in general (this is a free game after all), but I do not appreciate my game slowing down or freezing because of an ad. I understand there was an update recently, but that did not seem to help with the problem. I love this game, but this issue makes me not want to play.
Review by Seze98 on Pixel Art － Color by Number.