Few important fixes from SEO On-page by N. M

Hello,

I got some on-page SEO and there are few issues I have to fix.

9 Important fixes to be exact. I use Shopify since I don't know how to code so well, so I need to hire someone for this.

Here's some of the fixes I need done, I do not know if they are necessary, but they say it's important.

~ Inline CSS Test (Your page is using 20 inline CSS styles)

~ Page Objects (Your page uses more than 20 http requests) (HTML Pages, CSS Files, Scripts and images)

~ Image Expires Tag

~ Libwww-perl access test

And a couple of others. Could anyone here help me with this, and tell me if this is necessary or not?

My domain is hosted on Shopify, if that has anything to say.