Magento 2 error with authorize.net and other tasks

Hi Everyone, **Please read carefully before placing your bid** *** Please bid ONLY if you are an expert with Magento 2 and can fully manage this project*** *** MUST HAVE SOME BACKGROUND WITH WEBSITE DESIGNS AS WELL*** 1. I have a Magento 2 website and about 2 weeks ago I noticed that all [login to view URL] transactions are going directly into "pending" and not "processing" status. I also noticed that customers are getting an error message from the system after completing checkout , even if the transaction is authorized and captured on [login to view URL] (please see attached screen shot). 2. Some customers are complaining about the re-captcha and not able to register on our site. So we need to re-install a new re-captcha (visible one) 3. Our current load speed is at 6.54s and we need to optimize the site to be at 2s (around its ok) 4. I have a one step checkout page and I would like u to make it a little more attractive, design is not attractive and not matching the look of our website :) 5. I need to install about 7 new extensions, you must make sure they are running and will need to do the Configurations including everything in order for the extensions to be perfectly running on the site (I believe that some will need a knowledge in designs too) 6. Need you to make our website is friendly from the moment a customer is signed up , until product has being shipped, we can buy an extension or manage the emailed forms on our admin. Customers should get a nice looking, clean, designed email for 1) after sign up, 2)order received and process, 3) order has being shipped out and provide tracking number (must be a clickable tracking number), 4)order is out for delivery 5) order has been delivered 7. Add our toll free to the top of the page (left side) 8. Change our affiliate program to the old one. 9. Add 3 banners on our site 10. Fix error and bugs that needs in order to make all 9 tasks above to work perfect!!! *** If we will be happy with your service we might keep you as a full time job as we have many more tasks*** *** Payment will be sent ONLY after all tasks are done, DO NOT ASK PAYMENT BEFORE*** Thank you very much! Please contact me with any questions