Too high load on the server and blocking during traffic peaks

Good morning,
I have been using the free version of Post Views Counter (1.4.3) for a few months to get views of each article in the WordPress dashboard, in the line where I also see the author and title of the article. Unfortunately my site often has traffic peaks and writing the Post Views Counter data to the database slows down and sometimes blocks the server (we use Javascript mode).
I emailed support via the form at https://postviewscounter.com/support/, but no one responded. I kindly ask if there are any paid solutions that can solve the problem.

Can we solve the problem using Fast AJAX? Is it possible to have the data written on a database server other than the site’s? I would like to continue using Post Views Counter because it has exactly what I want, i.e. essential and easy to consult information in the WordPress dashboard. Thank you!