Help and advice

so i have too issues to address.

First is probably the most simple and that’s is how do I add a favicon image?

the next is a little more of a issue and that is my page load time.

I just need some advice.

can I reduce unused javascripts and can I reduce css.

I really dont want to change the theme but it’s scoring between 45 and 52 on google pagespeed Insight

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