This theme crash my server

Hi.

Last version of wordpress and the used.
PHP V7.4
MariaDb 10.3.22

I try to use this theme on a wordpress site with more than 50 000 articles.
When I try to load the homepage, this kind of queries appear in my MySQL processlist :

SELECT post_id, meta_key, meta_value FROM wp_3_postmeta WHERE post_id IN (104458,104456,104454,104452,104450,104448,104446,104504,104488,104506,104487,104406,104404,104498,104500,104490,104508,104502,104393,104389,104492,104479,104471,104481,104473,104460,104475,104494,104461,104462,104483,104485,104477,104341,104339,104337,104335,104408,104465,......, 750). # more than 50k id

The query is so long and slow that MySQL is completly stucked, the server load increase to more than 10 (it’s not a very powerful server) and PHP-fpm stop the page loading cause of timeout.

Page admin is unavailabe too. The only solution is to stop apache, restart mysql, change the theme in options table (to Donovan in my case) and … uninstall Metro Magazine to avoid activate it one more time. Donovan theme works load the homepage in less than 1s.

It’s sad because the theme is great but I can’t use it.

Regards