WordPress Hosting Optimization Expert Needed

I need help resolving a recurring issue where publishing posts, copying content, installing plugins, or activating plugins causes hosting CPU usage to spike and leads to temporary database errors. I’m looking for a permanent fix for this problem, along with overall website optimization, improved performance, and fixes for core web vitals. The goal is to stabilize hosting resource usage, reduce errors, and make the site faster and more reliable for ongoing use.website is made on wordpress us some pages on elemetor , using hostinger cloud enterprise hosting using,