Hello! Thank you for the wonderful mod.
I see the default model when I change the model with the /cpm command. Is there any way to prevent this?

It seems that if the model is not cached, the default model is visible for a longer time.

I am using CustomPlayerModelsFabric-1.20.2 v0.6.14b fabric.
I am Japanese, so please excuse the machine translated text...

Merge all of your models into one, and use toggle animations with the command controlled flag. Then set the toggle animations with /cpm animate command

The models are loaded in the background, and in most cases from the network or from the local cache, but that still needs file parsing, texture loading etc.

Thank you for your answer!
In this example, the model was thicker and thinner, but if I frequently replace a model with a very different shape, do I still have to merge it into one model?
For example, changing from a whale to a pig.

Thank you for your thoughtful reply!
I will try to work on this in a creative way using layer toggles and animations.

If you really want to avoid the less then 1 second load time, then yes.
Or give the player 1 or 2 seconds of invisibility, and spawn some particles, to hide the model change.