Default template visible before custom template

Hi, I successfully edited your buddybuilder templates and I am really happy with them, but not with the way they load. When I open a (page with) the template, I see the buddypress default template first, and only a few seconds later the custom template loads. I added a youtube video I made of reloading the profile template, and the default template is visible over 2 seconds. That is very confusing for users. How can I solve this?
https://youtu.be/HdU79T6KW20

• This topic was modified 2 years, 1 month ago by persoonlijkvaardiger.
• This topic was modified 2 years, 1 month ago by persoonlijkvaardiger.

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