Joomla Caching Issues

My website ([login to view URL]) seems to have issues with caching that is affecting my site in two main ways: 1. My Comments plug-in (CComment) frequently fails to display comments, and 2. Since the latest Joomla update, my breadcrumbs module is displaying incorrectly. This 2nd issue may be related to the menu though as the incorrect template for the page also seems to load. I am looking for a freelancer who is very familiar with Joomla, specifically with caching and things that will affect site speed. In addition to fixing those 2 issues, I would also like you to look for other errors/problems with my site and propose follow-up projects to fix them (complete with the cost for each). The proposed additional improvement projects should include: 1. improving page load speeds 2. making the site AMP compliant 3. any other problems you uncover If I'm happy with your work, I award you the follow-up project(s) as well (without opening them up for bids). The initial project will be setup with 3 objectives: 1. Solve the breadcrumb/menu template issue 2. Solve the CComment caching issue 3. Provide a proposal for further improvements