inumair on "help young entrepreneur launch his website"

Hello,

I am 22 and setting up a website and because I donot have a strong coding background, I need some help from the good people of wordpress community.

this is my test website
http://www.naari.pk/test

If anyone can answer even one question at a time, that would be great.

1. My sticky header menu does not transition animate properly when scrolling down. how to fix it or add animation

2. My main shop page http://www.naari.pk/test/shop/
shows only 2 columns of products when it should show atleast 3 or 4 columns.

3. On single product page like this http://www.naari.pk/test/shop/fashion/mobile-double-flash/
the image magnifier works fine on the main image, but it opens light box when other images of the product are clicked. I have disabled lightbox from woocommerce options as well.

4. I installed Yith themes plugin for Ajax Shop and it doesnot works. After activation it still loads the products as any regular theme would.

Please if anyone can help me with any point above, i shall be grateful.