Hello,
Sometimes websites get slow because of using heavy plugins, Images/videos and javascript files.
Also for this issues, I have to check CDN and DNS setup and SSL pinning.
I'll remove unused js files, check on different browsers its working as expected and fast.
I have expertise in web development, Web design, Plugins, Bugs Fixing, WP Elementor etc.
Can you provide me with the URL of the website?
Can you provide me with a list of the specific JS and CSS minification issues that you are having?
Can you provide me with a screenshot of the responsive header issues?
Let's connect and discuss this in detail, so I'll develop a website for your business.
Thanks
Abhishek