Dear @Lantalau,
We hope this message finds you well.
Could you please contact your hosting provider to investigate the cause of the high CPU usage on your server? Additionally, we kindly ask you to ensure that your SSD storage is not full, as this may also impact performance.
For further guidance, you may find the following article helpful:
https://onlinemediamasters.com/reduce-cpu-usage-wordpress/
Thank you for your attention to this matter.
Best regards,
The 8Theme Team