Cities: Skylines 2 launches today, and it's no secret that the game is arriving with some serious performance limitations. The devs at Colossal Order are working on improvements, but you should keep your expectations in check - it seems the devs are focused on a steady 30 FPS target rather than optimizing the game for higher frame rates.
"It is worth mentioning for a game like this, the performance target is to run at a steady 30 FPS minimum (not 60 or more)," as the studio's chief technical officer - who goes by 'damsku' - explained in a recent Reddit AMA.
"The target is 30 FPS because of the nature of the game," damsku said in a follow-up message. "(Arguably) there are no real benefits in a city builder to aim for higher FPS (unlike a multiplayer shooter), as a growing city will inevitably become CPU bound. What matters more with this type of game is to avoid stutters, and have responsive UI. For that reason, our simulation is also built around an expected update rate given 30 FPS."
In our Cities: Skylines 2 review, I gave the game two stars out of five largely because of its performance limitations. By the time my city crossed around 50,000 people, I would've given anything for a steady 30 FPS - unfortunately, while my hardware was capable of reaching that frame rate more often than not, those "stutters" damsku mentioned were downright egregious on my setup.
But that's one of the first points of order for the devs in post-launch patches. damsku said that one of the priorities for the team is "removing stutters, generally caused by some synchronization condition in the simulation and can greatly vary from one CPU to another, as well as how your city is built," in addition to more balanced GPU performance and general
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