PHP Fatal error: Allowed memory size exhausted

[airflo]

Right after installing and activating the plugin, I get a server error 500 and these error messages in the debug log:

PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 262144 bytes) in /***/wp-includes/theme.php on line 629
PHP Fatal error:  Allowed memory size of 268435456 bytes exhausted (tried to allocate 262144 bytes) in /***/wp-includes/class-wp-fatal-error-handler.php on line 37

After having set the memory limit to 512 MB, I get these instead:

PHP Fatal error:  Out of memory (allocated 526921728) (tried to allocate 262144 bytes) in /***/wp-includes/theme.php on line 133
PHP Fatal error:  Out of memory (allocated 526921728) (tried to allocate 262144 bytes) in /***/wp-includes/functions.php on line 4301
PHP Fatal error:  Out of memory (allocated 526921728) (tried to allocate 262144 bytes) in /***/wp-includes/theme.php on line 133
PHP Fatal error:  Out of memory (allocated 526921728) (tried to allocate 262144 bytes) in /***/wp-includes/functions.php on line 3848

The only thing that help was to limit the total amount of hooks the plugin keeps track of by editing the code in class-hook-profiler-engine.php. But then the data is incomplete.

Any ideas how to solve this issue? I am using PHP 8.3