Datatables is not diplayed half of the times.

Hello, I want to use datatables with Drupal 8 but I dont want to do it with the module Datatables because I have limited actions on tables. So, on every html document(through html template) I placed the CDN script and in libraries folder i placed corectly all the files. In my .js file I copy/paste the code that initializes the datatable and everything was looking good.
But, I observed that:

1. When I refreshing the page half of the times the array will be rendered as Datatables and the other half will be rendered as simple html.
2. If I visit the page as anonymous user 99% the table is render as Datatable.

I also dowload the files and use them locally from the server but i got the same result.
I know that here is not a discussion about Drupal but I want to know if you ever have a similar situation.