upload an existing web site and fixing issues that show up in the google web analysis report

the web site is avidubitzky.com and the issues are listed when google scans the and lists a few problems with in the site.
the report
https://search.google.com/search-console/core-web-vitals/drilldown?resource_id=https%3A%2F%2Favidubitzky.com%2F&item_key=CAMQAhgD&utm_source=wnc_10030260&utm_medium=gamma&utm_campaign=wnc_10030260&utm_content=msg_100058682&hl=en&sharing_key=sNnYy1HHdDkwIe_VEontzQ