I checked the Resource usage and see that WP default index.php in the logs https://prnt.sc/1u3pc2h, not theme index.php. So, tell me where did you get reports about the theme problem? We need screenshots of the requests or resource usage from our theme.
To get a better understanding of the issue.
One standard license is valid only for 1 project. Running multiple projects on a single license is a copyright violation.