Lets open 00-mpm.conf and switch the loaded module!
nano /etc/httpd/conf.modules.d/00-mpm.conf
#LoadModule mpm_prefork_module modules/mod_mpm_prefork.so
LoadModule mpm_worker_module modules/mod_mpm_worker.so
service httpd restart
Et voilá!
https://httpd.apache.org/docs/2.4/mpm.html
https://httpd.apache.org/docs/2.4/mod/worker.html
https://httpd.apache.org/docs/2.4/mod/prefork.html