Ahoy

Big user here from PirateCraft, sadly when using Brewing on 1.18.1 purpur tps goes down to 1 TPS and then crashes the server, removing Brewing brings it back to 20tps.

This must be something to do with barrels loading in chunks at boot?

I would much love this to be brought back please.

There is also a big hang at boot on 1.17.1 that I made a ticket for too.

I have taken great care not to load any chunks during barrel initialization. Any Data loading is done async and can not affect tps at all. Seen by the message Background data loading complete
Only in extreme cases, on data corruption or migration, Barrels will be regenerated, showing in log with the message
Regenerating Barrel BoundingBox

Without any timings or profiling reports, its hard to say what could cause this.
One option would be, to rename the data.yml and worlddata.yml to something else and start Brewery fresh, to see if loading the data is actually the issue.
Is there still a lot of legacy data in your data.yml as well?