Very slow after upgrading to Wordpress 5.6.1

My site was really quick. But after upgrading to Wordpress 5.6.1, it can take 10 secondes to open a page. I also upgraded Sydney at the same time… so I don’t know when the problem appeared.
I was using Sydney (free) when I noticed the problem. So I purchased Sydney Pro hoping to reset something, but it didn’t

Hi,

Does your website meet these requirements?

Check all your plugins versions and ensure you’re running the latest. The latest versions might help improve your website’s performance.

Regards,
Kharis
aThemes Support

Hi,
Thanks for your help.
The website hosting meets the requirements.

Following your suggestion, I checked the plugins and found out that it’s Wp Display Header that causes the slowness issue. So I let it disabled.
Is there a way using Sydney Pro to set a different header image for each page?

I found a solution.
You can close this thread.
Thanks,

If you edit a page, you can set a featured header image. And to show it on header, you have to enable the Featured header image template on the Page Attributes option.

Screen Shot 2021-02-16 at 09.53.15

Once that template is enabled. Now you can upload/choose an image from Featured image option.

Screen Shot 2021-02-16 at 09.53.28

I hope this reply helps.

Regards,
Kharis
aThemes Support