Case Study - WordPress speed overhaul and plugin cleanup for retail platform
Transforming a sluggish WordPress site into a fast, lean retail platform by removing bloated plugins, optimizing the database, and implementing modern performance practices.
Client
Year
2018
Service
WordPress Maintenance, Performance Optimization
Overview
mi9retail had a WordPress site weighed down by years of accumulated plugins, unoptimized queries, and technical debt. Page loads were slow, and the admin panel was nearly unusable.
We performed a comprehensive cleanup and optimization: stripping unnecessary plugins, rewriting slow queries, implementing caching, and reducing page weight until the site performed like new.
Overview
After several years of development by multiple agencies, mi9retail’s WordPress site had become a textbook case of plugin bloat. Over 40 plugins were active - many redundant, some conflicting, and a few that hadn’t been updated in years. The database had grown to over 2GB with orphaned metadata, transient data that never expired, and post revisions stretching back to the site’s launch.
The symptoms were predictable: 8+ second page loads, an admin panel that timed out regularly, and a server that spiked to 100% CPU during business hours. Previous agencies had “solved” performance problems by upgrading the hosting tier - a band-aid that was getting expensive.
We started with a full audit. We mapped every plugin’s purpose, identified overlaps, and found that 18 plugins could be removed immediately with zero functionality loss. Several custom functions replaced what three or four plugins used to do. The database got a thorough cleanup: we removed 1.2 million orphaned post meta rows, purged years of revisions, and added proper indexes to the most-queried tables.
Then came the optimization layer: server-side caching with Redis, optimized autoloaded options, lazy-loaded images and scripts, and a rewritten query for the main product listing that went from 3.2 seconds to 40 milliseconds.
What we did
- Performance Audit
- Plugin Consolidation
- Database Optimization
- Query Rewriting
- Caching Implementation
- Frontend Optimization
- Plugins removed
- 18
- Orphaned rows cleaned
- 1.2M
- Page load improvement
- 8s → 1.4s
- Faster product query
- 98x