We have Product Attribute called "Authors" with "Multiselect option". It has entries up to 51k. When we edit product page in backend it becomes very slow to load page and specially this attribute with values inside it. Now we have another 400k authors with products to import and i am expecting its not good to load all values inside 1 product author attribute, it can crash or slow down the whole website.
Attribute code: authors
Attribute label: Authors
Catalog Input Type for Store Owner: Multi select
Any suggestion would be great on that ?