The general movement inbetween the game has become laggy and slow. Gameplay rarely affected. But if I start a game it will take 5 10 secs for the level to load which used to happen instantly earlier. Same thing happens when game ends and have to return to menu screen.
Loading cloud saves takes over a minute sometimes.
And even when I am upgrading research the screen freezes every 10 or so researches.
Similar lagging and freezing experienced on different screens like the materials tab etc.