Headline: Start the Game with all the Technology researched and available. What: Forgive me if I have missed something (I don't know if there is a mod for this), but at present the only way to play in this mode is a sandbox, I'd still like the game objectives of avoiding the natives and escaping the...

Yeah. I gather it's a major change of plumbing to switch the game engine over to Metal?

- Actually. I didn't restart with some of these settings (Doh!). Messing with them, this seems to give me the best performance. It's playable.

It was my first thought to turn everything down see if that makes a difference. It doesn't. Here is a Perf capture with everything turned right down, and Wait for V-Sync Off. FPS in this mode are 38. Under Catalina, and everything was turned up, and ran with no issues. I don't know what the FPS was ...

Here are a few more performance dumps. Playing for a few minutes even though it's painfully laggy

- Ackers

I have had a few playing session where it's been just about playable, and this morning it's terrible. Not sure Apple support is a good suggestion, it's the only app that has the problem that I have seen so far, and they are pretty much just gonna blame the app aren't they? Apple support isn't the gr...

Yes!, I have a max'ed out 16" MacBook Pro and the game ran perfectly with everything up to max on Catalina, but even with some of the gfx settings turned down it's laggy and practically unplayable on Big Sur. Not dug further yet.