To anticipate it, I use the following way. Improve the performance of the worker MPM and prefork MPM of in ssh, I'm using Centos Web Panel.
Code:
nano /etc/httpd/conf/httpd.conf
As seen in the pictures I edit the following configuration. You can use your own configuration that fit to your server
After it finishes
Ctrl + C and Y
then restart httpd
service httpd restart
done