Header image and menü bar problem

What do you think about problem with menu bar and header image space? Please take a look to attached.
The first loading of the web site, this empty space become and go in 1-2 sec.
Here is my web site: http://bidigitalmarketing.com/

Hello there,

I hope you are doing well today.

Please use these plugins to optimize your WordPress and clear the WordPress cache:

Best Regards,
Support

No, unfortunately, is not working.

HI there

Sorry but i can’t see anything like that, this problem is either resolved or you changed something on the page?

No, there is still be the problem. First loading of the page 1-2 sec menu bar become the problem. Please take a look.

Hello there,

I hope you are doing well today.

You site seems to load slowly too, please contact your hosting provider and have them update your php version to 7.0 and increase your server resources also.

Best Regards,
Support

Do you believe that it will solve my problem?
It ought by at that moment, my website is normal now.

I’m sharing problem again.

Hello there,

Were they able to update the php version?

Best Regards,
Support