The game is doing a lot more post crash as it’s loading a lot of the act 1 map all at once, as opposed to just the small prologue area on the nautiloid, so your PC is likely to struggle more. What other stats does your PC have? RAM can make a difference, as can whether you have an SSD, and I know from bitter experience that there’s at least one Windows 11 setting can affect performance.
That all said, performance tuning is likely to be something done late in development so I would expect full release to be better than EA on that front.
