Does it take long time to assign a asset template?

[hyungeun-kim]

I made a tool to create and assign a asset template file, and I can do this.
But I have a problem with it.
It takes long time to assign a asset template file.
I think that the template file I made it proper to work, but just hard to be assigned.
If many nodes and many published attributes are in an asset, that causes a time lag?

I attach scene and template files, can you test the files or point out the problem?

file