Some players have reported lag in Factorio for years. Lag always seemed fair to me given the sprawling, complex bases you can build in the game, but the latest patch might make things better. Version 1.1.46, released this Saturday, makes several changes which should reduce multiplayer latency.
There are a bunch of bug fixes in the full changelog, but the latency tweaks are the big ones:
The top one is the most interesting. The patch notes link to this post on the Factorio forums from 2019. A
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