Website Design adjustment/UX improvement

The website is designed using elementor but it needs some of the setting to give better customer experience.
Website functionality is ok but the cosmetic look is missing detail.
I need someone can improve the user experience by fixing the detail
Here is few things

1. Fix some of the design issue some space below the header
2. Font size /font space/paragraph space (Typography was done but we like achieve the Datto.com clean look)
3. Ecom shop to make sure it is display information properly and functional on mobile and computer
4.Website make is mobile friendly and all the pages /font should be ok so user can read the information
5.Images needs to optimized if needed to improve the speed.
6.We needs to make sure header and footer are finished properly
We looking for someone can help us with other future projects with other websites