Thanks for the review! For the crashing, you can change the config.yml to change the values lower. If you do /magicitems help, it will give you the list of commands. Also, if you look in the commands spoiler (on this page), it will list the commands and what they do. I set the defaults (for the /magicitems enchants, binding, attributes, and vanishing to what I think people would like, and for the player nbt problem, I couldn't test with multiple players. As this is my first plugin, I'm still new to all of this, but I'll try to fix the problems. :D Be sure to join the discord too!
EDIT: In my testing, I couldn't find any fps, CPU, or memory problems with /magicitems enchant.
You can do /magicitems help, /magicitems enchants, /magicitems attributes, /magicitems vanishing, and /magicitems binding to see all commands. The commands are also on this spigot page, as I said above.
Above, I had misunderstood what you were saying about the UUIDs, sorry about that. In the future I could add a command for that (toggling). The tools and armor already have the curse of vanishing, so the only way players would be able to get the item is by being given by another player.
Again, please join the discord and make a support ticket so we can try getting these problems fixed for you! Sorry if I misunderstood any of your issues.
