Website resizing and general problem fixes

I have a client who has just had a website designed, they were not happy with the previous designer and have contacted me. Everything is pretty much finished, however they need the following problems fixed: - Homepage and services page resizing so you can see the photo in full without scrolling down. around 15%-20% down scale - Mobile page resizing, at the moment it is very zoomed in to the left hand corner, even if it is fully zoomed out that would be good. - Loading speed, the designer before hand said it was due to the hexagon background, but if there is any ways to speed up the loading that would be great - Facebook icon deleted - Twitter icon and linked in icon to be connected as they are not working yet. Once chosen I will be in contact and will need good consistent communication. Please contact me for any further questions. Fixed price quote and how long it would take please. Thank you Ryan