I've been noticing that your benchmarks for X-Plane 11.11 on Tiger Lake laptops are showing unusually low FPS for the 'low' setting:
Here's a list of some reviews that have lower FPS on the 'low' settings than 'medium' and/or 'high' settings:
https://www.notebookcheck.net/529378.0.html
https://www.notebookcheck.net/517858.0.html
https://www.notebookcheck.net/540670.0.html
https://www.notebookcheck.com/511930.0.html
https://www.notebookcheck.net/508989.0.html
https://www.notebookcheck.net/539285.0.html
https://www.notebookcheck.net/539455.0.html
https://www.notebookcheck.com/537571.0.html
https://www.notebookcheck.com/536097.0.html
https://www.notebookcheck.net/535362.0.html
https://www.notebookcheck.net/514191.0.html
https://www.notebookcheck.net/508474.0.html
https://www.notebookcheck.net/539742.0.html
https://www.notebookcheck.com/541108.0.html
Maybe check if there's some sort of bug there and exclude this value until it's fixed.