Wordpress Travel Site Customization

Hi, I am working on a wordpress travel tour site. This site uses visual composer as builder. I need some customization and improvement on the site. Site is: [login to view URL] To Do List: TO DO 1- This theme has an item called tour. Tour has some default features. In tour editing page under tour detail you can select Time of Tour as exact date. I want to use free text instead of exact date. And i want these text options to be multiple. For example my tour can exist for Christmas, Spring Break and Summer. TO DO 2- In home page or any other page you can use visual composer item called VG Form Search Tool. I want to change criteria of this tool. Criteria should be 1-Free text area 2-Country (Tour Countries input area under Tour Information part in tour editing page) 3-Time of Tour (Time of tour will be dropdown text options not exact date. Remember to do list 1.) 4-Type of Tour (This can come as dropdown showing skill of tours) And when we click button we should be redirected to [login to view URL] page with appropriate selection that we make by selecting criteria in Form Seach Tool. TO DO 3- In tour listing page (i.e [login to view URL]) sorting options and view as options at the top are not working. They should work. TO DO 4- In left side of tour listing page (i.e [login to view URL]) search again box should be removed. Filter Result part should include: Country, Price Range, Star Range, Time of Tour, Type of Tour. If i come this page by using Search Form Tour, when page loads all filtering options according to criteria of Search Tool should exist in the first place. TO DO 5- In tour detail page (i.e [login to view URL]) “Change Search” button should be removed. TO DO 6- In tour editing page (i.e [login to view URL]) there is an input area called “Experience” under Tour Information section, it shoul be removed. By removing from this section it should be removed from visual composer item called VG Tour Information too. TO DO 7- In tour detail page (i.e [login to view URL]) i want to remove search area under “availability” part. I also want to remove “book now” and “show more departures” buttons. TO DO 8- I have speed problems. It is not just about size of images or cdn. Even when i try to update something in wp-admin or try to open tour listing page it takes minutes sometimes. It freezes, gives error or show total white screen. If i reload again page comes. This problem should be fixed. After finishing this project i want to continue with the same team for multli-language and multi-currency part of this project.