When a client reports slow admin screens, failed checkouts, or random timeouts, agencies don’t have the luxury of digging through dozens of tables or reverse-engineering plugin behavior. You need to recognize the likely failure points quickly and focus your attention where it matters.
In practice, most serious performance and stability issues trace back to a small number of database tables that grow unchecked over time. These tables don’t cause problems on new or low-traffic sites, but with years of content, plugins, and user activity, they’re responsible for a disproportionate number of crashes, slow queries, and emergency support tickets.
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