Product page that loads in two seconds during normal traffic but stalls when a promotion begins usually has a database problem hiding behind a hosting problem. PHP workers may be available, CPU utilization may look reasonable, and a CDN may …
A Magento store usually tells you when hosting is falling behind before your monitoring does. Pages start dragging during promotions, admin tasks get sluggish, checkout spikes CPU, and a traffic bump that should feel like growth starts looking like risk. …