system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How is it possible to release games with terrible performance issues on day one? Wouldn't this be caught during pre-release testing?
gpt
You're under the impression that they didn't know about them.  Yes, this would be caught in testing, but it doesn't mean they delay the release because of it.   Publishers and developers are two different sides of a game.  The publisher decides when it releases.  If the developers can't fix the problem in time for the release deadline, the publisher can either delay release, or give zero fucks and release anyway.

The last few years have seen a lot of unifinished games being released, but no one stops buying games from those publishers to punish them, so there's no incentive to stop the practice.