Website is all wonky on mobile / images not loading

Hi Enfold Team!
Having two (2) issues – hoping you can assist me, happy to open a second thread if these should be separated … I am certain these are probably simple things to fix, I just have not been able to find a solution!

1. My website is all wonky on mobile (url in private section)
– I am using a full width slider on all my pages with text and buttons – on mobile the text & buttons are completely cut off.
– The images in each of the the sections on the home page are not really showing, they are not responding to mobile screens
– The text in each section of the home page is not responding – it’s HUGE (unless text does not become responsive?)
2. One of my pages is not loading images on desktop – I have 6 masonry galleries on the page – the first 3 load great upon scroll, the last 3 do not – you have to scroll past the section then scroll up again for the images to load. All images appear to be optimized for web (url & screen shot in private section). I have checked on several laptops and it’s the same issue on all of them.

Lastly and this is not an issue, it’s a question – how do I add a “white box” around the email signup fields (first name, last name, email) in the footer (I’m using a mailchimp form), it’s tricky to see where one should add their name/email.

Thanks so much, I look forward to hearing from someone.
~Cheers