Big Registration Form

Hi.

I have a big registration form that takes a while to load. And, in some cases, it causes to get a person to wait a lot for it to load, making him or her leave without registering.

So I modified the PHP.ini file and increased the max_input_vars to 2000.

And I also thought I had the solution with this: https://docs.ultimatemember.com/article/1552-how-to-manage-profile-form-with-a-huge-quantity-of-fields. But this only applies to Profile Form and I need to do it with the Registration Form.

How can I split it or make it faster?

The page I need help with: [log in to see the link]